640010800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:276

約数の個数: 240

約数和(自身を含む): 1844381952

約数和(自身を除く): 1204371152

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 67, 80, 88, 100, 104, 110, 130, 134, 143, 167, 176, 200, 208, 220, 260, 268, 275, 286, 325, 334, 335, 400, 440, 520, 536, 550, 572, 650, 668, 670, 715, 737, 835, 871, 880, 1040, 1072, 1100, 1144, 1300, 1336, 1340, 1430, 1474, 1670, 1675, 1742, 1837, 2171, 2200, 2288, 2600, 2672, 2680, 2860, 2948, 3340, 3350, 3484, 3575, 3674, 3685, 4175, 4342, 4355, 4400, 5200, 5360, 5720, 5896, 6680, 6700, 6968, 7150, 7348, 7370, 8350, 8684, 8710, 9185, 9581, 10855, 11189, 11440, 11792, 13360, 13400, 13936, 14300, 14696, 14740, 16700, 17368, 17420, 18370, 18425, 19162, 21710, 21775, 22378, 23881, 26800, 28600, 29392, 29480, 33400, 34736, 34840, 36740, 36850, 38324, 43420, 43550, 44756, 45925, 47762, 47905, 54275, 55945, 57200, 58960, 66800, 69680, 73480, 73700, 76648, 86840, 87100, 89512, 91850, 95524, 95810, 108550, 111890, 119405, 123079, 145457, 146960, 147400, 153296, 173680, 174200, 179024, 183700, 191048, 191620, 217100, 223780, 238810, 239525, 246158, 279725, 290914, 294800, 348400, 367400, 382096, 383240, 434200, 447560, 477620, 479050, 492316, 559450, 581828, 597025, 615395, 727285, 734800, 766480, 868400, 895120, 955240, 958100, 984632, 1118900, 1163656, 1194050, 1230790, 1454570, 1600027, 1910480, 1916200, 1969264, 2237800, 2327312, 2388100, 2461580, 2909140, 3076975, 3200054, 3636425, 3832400, 4475600, 4776200, 4923160, 5818280, 6153950, 6400108, 7272850, 8000135, 9552400, 9846320, 11636560, 12307900, 12800216, 14545700, 16000270, 24615800, 25600432, 29091400, 32000540, 40000675, 49231600, 58182800, 64001080, 80001350, 128002160, 160002700, 320005400, 640010800]

約数ペア:

[(1, 640010800), (2, 320005400), (4, 160002700), (5, 128002160), (8, 80001350), (10, 64001080), (11, 58182800), (13, 49231600), (16, 40000675), (20, 32000540), (22, 29091400), (25, 25600432), (26, 24615800), (40, 16000270), (44, 14545700), (50, 12800216), (52, 12307900), (55, 11636560), (65, 9846320), (67, 9552400), (80, 8000135), (88, 7272850), (100, 6400108), (104, 6153950), (110, 5818280), (130, 4923160), (134, 4776200), (143, 4475600), (167, 3832400), (176, 3636425), (200, 3200054), (208, 3076975), (220, 2909140), (260, 2461580), (268, 2388100), (275, 2327312), (286, 2237800), (325, 1969264), (334, 1916200), (335, 1910480), (400, 1600027), (440, 1454570), (520, 1230790), (536, 1194050), (550, 1163656), (572, 1118900), (650, 984632), (668, 958100), (670, 955240), (715, 895120), (737, 868400), (835, 766480), (871, 734800), (880, 727285), (1040, 615395), (1072, 597025), (1100, 581828), (1144, 559450), (1300, 492316), (1336, 479050), (1340, 477620), (1430, 447560), (1474, 434200), (1670, 383240), (1675, 382096), (1742, 367400), (1837, 348400), (2171, 294800), (2200, 290914), (2288, 279725), (2600, 246158), (2672, 239525), (2680, 238810), (2860, 223780), (2948, 217100), (3340, 191620), (3350, 191048), (3484, 183700), (3575, 179024), (3674, 174200), (3685, 173680), (4175, 153296), (4342, 147400), (4355, 146960), (4400, 145457), (5200, 123079), (5360, 119405), (5720, 111890), (5896, 108550), (6680, 95810), (6700, 95524), (6968, 91850), (7150, 89512), (7348, 87100), (7370, 86840), (8350, 76648), (8684, 73700), (8710, 73480), (9185, 69680), (9581, 66800), (10855, 58960), (11189, 57200), (11440, 55945), (11792, 54275), (13360, 47905), (13400, 47762), (13936, 45925), (14300, 44756), (14696, 43550), (14740, 43420), (16700, 38324), (17368, 36850), (17420, 36740), (18370, 34840), (18425, 34736), (19162, 33400), (21710, 29480), (21775, 29392), (22378, 28600), (23881, 26800)]