20945250

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 60652800

約数和(自身を除く): 39707550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 29, 30, 45, 50, 54, 58, 75, 87, 90, 107, 125, 135, 145, 150, 174, 214, 225, 250, 261, 270, 290, 321, 375, 435, 450, 522, 535, 642, 675, 725, 750, 783, 870, 963, 1070, 1125, 1305, 1350, 1450, 1566, 1605, 1926, 2175, 2250, 2610, 2675, 2889, 3103, 3210, 3375, 3625, 3915, 4350, 4815, 5350, 5778, 6206, 6525, 6750, 7250, 7830, 8025, 9309, 9630, 10875, 13050, 13375, 14445, 15515, 16050, 18618, 19575, 21750, 24075, 26750, 27927, 28890, 31030, 32625, 39150, 40125, 46545, 48150, 55854, 65250, 72225, 77575, 80250, 83781, 93090, 97875, 120375, 139635, 144450, 155150, 167562, 195750, 232725, 240750, 279270, 361125, 387875, 418905, 465450, 698175, 722250, 775750, 837810, 1163625, 1396350, 2094525, 2327250, 3490875, 4189050, 6981750, 10472625, 20945250]

約数ペア:

[(1, 20945250), (2, 10472625), (3, 6981750), (5, 4189050), (6, 3490875), (9, 2327250), (10, 2094525), (15, 1396350), (18, 1163625), (25, 837810), (27, 775750), (29, 722250), (30, 698175), (45, 465450), (50, 418905), (54, 387875), (58, 361125), (75, 279270), (87, 240750), (90, 232725), (107, 195750), (125, 167562), (135, 155150), (145, 144450), (150, 139635), (174, 120375), (214, 97875), (225, 93090), (250, 83781), (261, 80250), (270, 77575), (290, 72225), (321, 65250), (375, 55854), (435, 48150), (450, 46545), (522, 40125), (535, 39150), (642, 32625), (675, 31030), (725, 28890), (750, 27927), (783, 26750), (870, 24075), (963, 21750), (1070, 19575), (1125, 18618), (1305, 16050), (1350, 15515), (1450, 14445), (1566, 13375), (1605, 13050), (1926, 10875), (2175, 9630), (2250, 9309), (2610, 8025), (2675, 7830), (2889, 7250), (3103, 6750), (3210, 6525), (3375, 6206), (3625, 5778), (3915, 5350), (4350, 4815)]