19510920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:420

約数の個数: 192

約数和(自身を含む): 74692800

約数和(自身を除く): 55181880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 379, 390, 396, 429, 440, 468, 495, 520, 572, 585, 660, 715, 758, 780, 792, 858, 936, 990, 1137, 1144, 1170, 1287, 1320, 1430, 1516, 1560, 1716, 1895, 1980, 2145, 2274, 2340, 2574, 2860, 3032, 3411, 3432, 3790, 3960, 4169, 4290, 4548, 4680, 4927, 5148, 5685, 5720, 6435, 6822, 7580, 8338, 8580, 9096, 9854, 10296, 11370, 12507, 12870, 13644, 14781, 15160, 16676, 17055, 17160, 19708, 20845, 22740, 24635, 25014, 25740, 27288, 29562, 33352, 34110, 37521, 39416, 41690, 44343, 45480, 49270, 50028, 51480, 54197, 59124, 62535, 68220, 73905, 75042, 83380, 88686, 98540, 100056, 108394, 118248, 125070, 136440, 147810, 150084, 162591, 166760, 177372, 187605, 197080, 216788, 221715, 250140, 270985, 295620, 300168, 325182, 354744, 375210, 433576, 443430, 487773, 500280, 541970, 591240, 650364, 750420, 812955, 886860, 975546, 1083940, 1300728, 1500840, 1625910, 1773720, 1951092, 2167880, 2438865, 3251820, 3902184, 4877730, 6503640, 9755460, 19510920]

約数ペア:

[(1, 19510920), (2, 9755460), (3, 6503640), (4, 4877730), (5, 3902184), (6, 3251820), (8, 2438865), (9, 2167880), (10, 1951092), (11, 1773720), (12, 1625910), (13, 1500840), (15, 1300728), (18, 1083940), (20, 975546), (22, 886860), (24, 812955), (26, 750420), (30, 650364), (33, 591240), (36, 541970), (39, 500280), (40, 487773), (44, 443430), (45, 433576), (52, 375210), (55, 354744), (60, 325182), (65, 300168), (66, 295620), (72, 270985), (78, 250140), (88, 221715), (90, 216788), (99, 197080), (104, 187605), (110, 177372), (117, 166760), (120, 162591), (130, 150084), (132, 147810), (143, 136440), (156, 125070), (165, 118248), (180, 108394), (195, 100056), (198, 98540), (220, 88686), (234, 83380), (260, 75042), (264, 73905), (286, 68220), (312, 62535), (330, 59124), (360, 54197), (379, 51480), (390, 50028), (396, 49270), (429, 45480), (440, 44343), (468, 41690), (495, 39416), (520, 37521), (572, 34110), (585, 33352), (660, 29562), (715, 27288), (758, 25740), (780, 25014), (792, 24635), (858, 22740), (936, 20845), (990, 19708), (1137, 17160), (1144, 17055), (1170, 16676), (1287, 15160), (1320, 14781), (1430, 13644), (1516, 12870), (1560, 12507), (1716, 11370), (1895, 10296), (1980, 9854), (2145, 9096), (2274, 8580), (2340, 8338), (2574, 7580), (2860, 6822), (3032, 6435), (3411, 5720), (3432, 5685), (3790, 5148), (3960, 4927), (4169, 4680), (4290, 4548)]