20855250

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 192

約数和(自身を含む): 65415168

約数和(自身を除く): 44559918

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 25, 26, 30, 31, 39, 45, 46, 50, 62, 65, 69, 75, 78, 90, 93, 115, 117, 125, 130, 138, 150, 155, 186, 195, 207, 225, 230, 234, 250, 279, 299, 310, 325, 345, 375, 390, 403, 414, 450, 465, 558, 575, 585, 598, 650, 690, 713, 750, 775, 806, 897, 930, 975, 1035, 1125, 1150, 1170, 1209, 1395, 1426, 1495, 1550, 1625, 1725, 1794, 1950, 2015, 2070, 2139, 2250, 2325, 2418, 2691, 2790, 2875, 2925, 2990, 3250, 3450, 3565, 3627, 3875, 4030, 4278, 4485, 4650, 4875, 5175, 5382, 5750, 5850, 6045, 6417, 6975, 7130, 7254, 7475, 7750, 8625, 8970, 9269, 9750, 10075, 10350, 10695, 11625, 12090, 12834, 13455, 13950, 14625, 14950, 17250, 17825, 18135, 18538, 20150, 21390, 22425, 23250, 25875, 26910, 27807, 29250, 30225, 32085, 34875, 35650, 36270, 37375, 44850, 46345, 50375, 51750, 53475, 55614, 60450, 64170, 67275, 69750, 74750, 83421, 89125, 90675, 92690, 100750, 106950, 112125, 134550, 139035, 151125, 160425, 166842, 178250, 181350, 224250, 231725, 267375, 278070, 302250, 320850, 336375, 417105, 453375, 463450, 534750, 672750, 695175, 802125, 834210, 906750, 1158625, 1390350, 1604250, 2085525, 2317250, 3475875, 4171050, 6951750, 10427625, 20855250]

約数ペア:

[(1, 20855250), (2, 10427625), (3, 6951750), (5, 4171050), (6, 3475875), (9, 2317250), (10, 2085525), (13, 1604250), (15, 1390350), (18, 1158625), (23, 906750), (25, 834210), (26, 802125), (30, 695175), (31, 672750), (39, 534750), (45, 463450), (46, 453375), (50, 417105), (62, 336375), (65, 320850), (69, 302250), (75, 278070), (78, 267375), (90, 231725), (93, 224250), (115, 181350), (117, 178250), (125, 166842), (130, 160425), (138, 151125), (150, 139035), (155, 134550), (186, 112125), (195, 106950), (207, 100750), (225, 92690), (230, 90675), (234, 89125), (250, 83421), (279, 74750), (299, 69750), (310, 67275), (325, 64170), (345, 60450), (375, 55614), (390, 53475), (403, 51750), (414, 50375), (450, 46345), (465, 44850), (558, 37375), (575, 36270), (585, 35650), (598, 34875), (650, 32085), (690, 30225), (713, 29250), (750, 27807), (775, 26910), (806, 25875), (897, 23250), (930, 22425), (975, 21390), (1035, 20150), (1125, 18538), (1150, 18135), (1170, 17825), (1209, 17250), (1395, 14950), (1426, 14625), (1495, 13950), (1550, 13455), (1625, 12834), (1725, 12090), (1794, 11625), (1950, 10695), (2015, 10350), (2070, 10075), (2139, 9750), (2250, 9269), (2325, 8970), (2418, 8625), (2691, 7750), (2790, 7475), (2875, 7254), (2925, 7130), (2990, 6975), (3250, 6417), (3450, 6045), (3565, 5850), (3627, 5750), (3875, 5382), (4030, 5175), (4278, 4875), (4485, 4650)]