20901750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 55766880

約数和(自身を除く): 34865130

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 31, 50, 58, 62, 75, 87, 93, 125, 145, 150, 155, 174, 186, 250, 290, 310, 375, 435, 465, 725, 750, 775, 870, 899, 930, 961, 1450, 1550, 1798, 1922, 2175, 2325, 2697, 2883, 3625, 3875, 4350, 4495, 4650, 4805, 5394, 5766, 7250, 7750, 8990, 9610, 10875, 11625, 13485, 14415, 21750, 22475, 23250, 24025, 26970, 27869, 28830, 44950, 48050, 55738, 67425, 72075, 83607, 112375, 120125, 134850, 139345, 144150, 167214, 224750, 240250, 278690, 337125, 360375, 418035, 674250, 696725, 720750, 836070, 1393450, 2090175, 3483625, 4180350, 6967250, 10450875, 20901750]

約数ペア:

[(1, 20901750), (2, 10450875), (3, 6967250), (5, 4180350), (6, 3483625), (10, 2090175), (15, 1393450), (25, 836070), (29, 720750), (30, 696725), (31, 674250), (50, 418035), (58, 360375), (62, 337125), (75, 278690), (87, 240250), (93, 224750), (125, 167214), (145, 144150), (150, 139345), (155, 134850), (174, 120125), (186, 112375), (250, 83607), (290, 72075), (310, 67425), (375, 55738), (435, 48050), (465, 44950), (725, 28830), (750, 27869), (775, 26970), (870, 24025), (899, 23250), (930, 22475), (961, 21750), (1450, 14415), (1550, 13485), (1798, 11625), (1922, 10875), (2175, 9610), (2325, 8990), (2697, 7750), (2883, 7250), (3625, 5766), (3875, 5394), (4350, 4805), (4495, 4650)]