20199775700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{70309}}^1$

素因数の和:70366

約数の個数: 108

約数和(自身を含む): 50257447380

約数和(自身を除く): 30057671680

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 169, 170, 221, 260, 325, 338, 340, 425, 442, 650, 676, 845, 850, 884, 1105, 1300, 1690, 1700, 2210, 2873, 3380, 4225, 4420, 5525, 5746, 8450, 11050, 11492, 14365, 16900, 22100, 28730, 57460, 70309, 71825, 140618, 143650, 281236, 287300, 351545, 703090, 914017, 1195253, 1406180, 1757725, 1828034, 2390506, 3515450, 3656068, 4570085, 4781012, 5976265, 7030900, 9140170, 11882221, 11952530, 15538289, 18280340, 22850425, 23764442, 23905060, 29881325, 31076578, 45700850, 47528884, 59411105, 59762650, 62153156, 77691445, 91401700, 118822210, 119525300, 155382890, 201997757, 237644420, 297055525, 310765780, 388457225, 403995514, 594111050, 776914450, 807991028, 1009988785, 1188222100, 1553828900, 2019977570, 4039955140, 5049943925, 10099887850, 20199775700]

約数ペア:

[(1, 20199775700), (2, 10099887850), (4, 5049943925), (5, 4039955140), (10, 2019977570), (13, 1553828900), (17, 1188222100), (20, 1009988785), (25, 807991028), (26, 776914450), (34, 594111050), (50, 403995514), (52, 388457225), (65, 310765780), (68, 297055525), (85, 237644420), (100, 201997757), (130, 155382890), (169, 119525300), (170, 118822210), (221, 91401700), (260, 77691445), (325, 62153156), (338, 59762650), (340, 59411105), (425, 47528884), (442, 45700850), (650, 31076578), (676, 29881325), (845, 23905060), (850, 23764442), (884, 22850425), (1105, 18280340), (1300, 15538289), (1690, 11952530), (1700, 11882221), (2210, 9140170), (2873, 7030900), (3380, 5976265), (4225, 4781012), (4420, 4570085), (5525, 3656068), (5746, 3515450), (8450, 2390506), (11050, 1828034), (11492, 1757725), (14365, 1406180), (16900, 1195253), (22100, 914017), (28730, 703090), (57460, 351545), (70309, 287300), (71825, 281236), (140618, 143650)]