20657436780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{467}}^1\times {\mathrm{2551}}^1$

素因数の和:3064

約数の個数: 144

約数和(自身を含む): 61599073536

約数和(自身を除く): 40941636756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 467, 510, 578, 867, 934, 1020, 1156, 1401, 1445, 1734, 1868, 2335, 2551, 2802, 2890, 3468, 4335, 4670, 5102, 5604, 5780, 7005, 7653, 7939, 8670, 9340, 10204, 12755, 14010, 15306, 15878, 17340, 23817, 25510, 28020, 30612, 31756, 38265, 39695, 43367, 47634, 51020, 76530, 79390, 86734, 95268, 119085, 130101, 134963, 153060, 158780, 173468, 216835, 238170, 260202, 269926, 404889, 433670, 476340, 520404, 539852, 650505, 674815, 737239, 809778, 867340, 1191317, 1301010, 1349630, 1474478, 1619556, 2024445, 2211717, 2382634, 2602020, 2699260, 2948956, 3573951, 3686195, 4048890, 4423434, 4765268, 5956585, 7147902, 7372390, 8097780, 8846868, 11058585, 11913170, 14295804, 14744780, 17869755, 20252389, 22117170, 23826340, 35739510, 40504778, 44234340, 60757167, 71479020, 81009556, 101261945, 121514334, 202523890, 243028668, 303785835, 344290613, 405047780, 607571670, 688581226, 1032871839, 1215143340, 1377162452, 1721453065, 2065743678, 3442906130, 4131487356, 5164359195, 6885812260, 10328718390, 20657436780]

約数ペア:

[(1, 20657436780), (2, 10328718390), (3, 6885812260), (4, 5164359195), (5, 4131487356), (6, 3442906130), (10, 2065743678), (12, 1721453065), (15, 1377162452), (17, 1215143340), (20, 1032871839), (30, 688581226), (34, 607571670), (51, 405047780), (60, 344290613), (68, 303785835), (85, 243028668), (102, 202523890), (170, 121514334), (204, 101261945), (255, 81009556), (289, 71479020), (340, 60757167), (467, 44234340), (510, 40504778), (578, 35739510), (867, 23826340), (934, 22117170), (1020, 20252389), (1156, 17869755), (1401, 14744780), (1445, 14295804), (1734, 11913170), (1868, 11058585), (2335, 8846868), (2551, 8097780), (2802, 7372390), (2890, 7147902), (3468, 5956585), (4335, 4765268), (4670, 4423434), (5102, 4048890), (5604, 3686195), (5780, 3573951), (7005, 2948956), (7653, 2699260), (7939, 2602020), (8670, 2382634), (9340, 2211717), (10204, 2024445), (12755, 1619556), (14010, 1474478), (15306, 1349630), (15878, 1301010), (17340, 1191317), (23817, 867340), (25510, 809778), (28020, 737239), (30612, 674815), (31756, 650505), (38265, 539852), (39695, 520404), (43367, 476340), (47634, 433670), (51020, 404889), (76530, 269926), (79390, 260202), (86734, 238170), (95268, 216835), (119085, 173468), (130101, 158780), (134963, 153060)]