28711800

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 192

約数和(自身を含む): 106764000

約数和(自身を除く): 78052200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 25, 26, 27, 30, 36, 39, 40, 45, 50, 52, 54, 60, 65, 72, 75, 78, 90, 100, 104, 108, 117, 120, 130, 135, 150, 156, 180, 195, 200, 216, 225, 234, 260, 270, 300, 312, 325, 351, 360, 390, 409, 450, 468, 520, 540, 585, 600, 650, 675, 702, 780, 818, 900, 936, 975, 1080, 1170, 1227, 1300, 1350, 1404, 1560, 1636, 1755, 1800, 1950, 2045, 2340, 2454, 2600, 2700, 2808, 2925, 3272, 3510, 3681, 3900, 4090, 4680, 4908, 5317, 5400, 5850, 6135, 7020, 7362, 7800, 8180, 8775, 9816, 10225, 10634, 11043, 11700, 12270, 14040, 14724, 15951, 16360, 17550, 18405, 20450, 21268, 22086, 23400, 24540, 26585, 29448, 30675, 31902, 35100, 36810, 40900, 42536, 44172, 47853, 49080, 53170, 55215, 61350, 63804, 70200, 73620, 79755, 81800, 88344, 92025, 95706, 106340, 110430, 122700, 127608, 132925, 143559, 147240, 159510, 184050, 191412, 212680, 220860, 239265, 245400, 265850, 276075, 287118, 319020, 368100, 382824, 398775, 441720, 478530, 531700, 552150, 574236, 638040, 717795, 736200, 797550, 957060, 1063400, 1104300, 1148472, 1196325, 1435590, 1595100, 1914120, 2208600, 2392650, 2871180, 3190200, 3588975, 4785300, 5742360, 7177950, 9570600, 14355900, 28711800]

約数ペア:

[(1, 28711800), (2, 14355900), (3, 9570600), (4, 7177950), (5, 5742360), (6, 4785300), (8, 3588975), (9, 3190200), (10, 2871180), (12, 2392650), (13, 2208600), (15, 1914120), (18, 1595100), (20, 1435590), (24, 1196325), (25, 1148472), (26, 1104300), (27, 1063400), (30, 957060), (36, 797550), (39, 736200), (40, 717795), (45, 638040), (50, 574236), (52, 552150), (54, 531700), (60, 478530), (65, 441720), (72, 398775), (75, 382824), (78, 368100), (90, 319020), (100, 287118), (104, 276075), (108, 265850), (117, 245400), (120, 239265), (130, 220860), (135, 212680), (150, 191412), (156, 184050), (180, 159510), (195, 147240), (200, 143559), (216, 132925), (225, 127608), (234, 122700), (260, 110430), (270, 106340), (300, 95706), (312, 92025), (325, 88344), (351, 81800), (360, 79755), (390, 73620), (409, 70200), (450, 63804), (468, 61350), (520, 55215), (540, 53170), (585, 49080), (600, 47853), (650, 44172), (675, 42536), (702, 40900), (780, 36810), (818, 35100), (900, 31902), (936, 30675), (975, 29448), (1080, 26585), (1170, 24540), (1227, 23400), (1300, 22086), (1350, 21268), (1404, 20450), (1560, 18405), (1636, 17550), (1755, 16360), (1800, 15951), (1950, 14724), (2045, 14040), (2340, 12270), (2454, 11700), (2600, 11043), (2700, 10634), (2808, 10225), (2925, 9816), (3272, 8775), (3510, 8180), (3681, 7800), (3900, 7362), (4090, 7020), (4680, 6135), (4908, 5850), (5317, 5400)]