20814750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^2$

素因数の和:92

約数の個数: 144

約数和(自身を含む): 63589968

約数和(自身を除く): 42775218

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 29, 30, 33, 45, 50, 55, 58, 66, 75, 87, 90, 99, 110, 125, 145, 150, 165, 174, 198, 225, 250, 261, 275, 290, 319, 330, 375, 435, 450, 495, 522, 550, 638, 725, 750, 825, 841, 870, 957, 990, 1125, 1305, 1375, 1450, 1595, 1650, 1682, 1914, 2175, 2250, 2475, 2523, 2610, 2750, 2871, 3190, 3625, 4125, 4205, 4350, 4785, 4950, 5046, 5742, 6525, 7250, 7569, 7975, 8250, 8410, 9251, 9570, 10875, 12375, 12615, 13050, 14355, 15138, 15950, 18502, 21025, 21750, 23925, 24750, 25230, 27753, 28710, 32625, 37845, 39875, 42050, 46255, 47850, 55506, 63075, 65250, 71775, 75690, 79750, 83259, 92510, 105125, 119625, 126150, 138765, 143550, 166518, 189225, 210250, 231275, 239250, 277530, 315375, 358875, 378450, 416295, 462550, 630750, 693825, 717750, 832590, 946125, 1156375, 1387650, 1892250, 2081475, 2312750, 3469125, 4162950, 6938250, 10407375, 20814750]

約数ペア:

[(1, 20814750), (2, 10407375), (3, 6938250), (5, 4162950), (6, 3469125), (9, 2312750), (10, 2081475), (11, 1892250), (15, 1387650), (18, 1156375), (22, 946125), (25, 832590), (29, 717750), (30, 693825), (33, 630750), (45, 462550), (50, 416295), (55, 378450), (58, 358875), (66, 315375), (75, 277530), (87, 239250), (90, 231275), (99, 210250), (110, 189225), (125, 166518), (145, 143550), (150, 138765), (165, 126150), (174, 119625), (198, 105125), (225, 92510), (250, 83259), (261, 79750), (275, 75690), (290, 71775), (319, 65250), (330, 63075), (375, 55506), (435, 47850), (450, 46255), (495, 42050), (522, 39875), (550, 37845), (638, 32625), (725, 28710), (750, 27753), (825, 25230), (841, 24750), (870, 23925), (957, 21750), (990, 21025), (1125, 18502), (1305, 15950), (1375, 15138), (1450, 14355), (1595, 13050), (1650, 12615), (1682, 12375), (1914, 10875), (2175, 9570), (2250, 9251), (2475, 8410), (2523, 8250), (2610, 7975), (2750, 7569), (2871, 7250), (3190, 6525), (3625, 5742), (4125, 5046), (4205, 4950), (4350, 4785)]