217748440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 608348160

約数和(自身を除く): 390599720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 163, 182, 260, 280, 326, 364, 367, 455, 520, 652, 728, 734, 815, 910, 1141, 1304, 1468, 1630, 1820, 1835, 2119, 2282, 2569, 2936, 3260, 3640, 3670, 4238, 4564, 4771, 5138, 5705, 6520, 7340, 8476, 9128, 9542, 10276, 10595, 11410, 12845, 14680, 14833, 16952, 19084, 20552, 21190, 22820, 23855, 25690, 29666, 33397, 38168, 42380, 45640, 47710, 51380, 59332, 59821, 66794, 74165, 84760, 95420, 102760, 118664, 119642, 133588, 148330, 166985, 190840, 239284, 267176, 296660, 299105, 333970, 418747, 478568, 593320, 598210, 667940, 777673, 837494, 1196420, 1335880, 1555346, 1674988, 2093735, 2392840, 3110692, 3349976, 3888365, 4187470, 5443711, 6221384, 7776730, 8374940, 10887422, 15553460, 16749880, 21774844, 27218555, 31106920, 43549688, 54437110, 108874220, 217748440]

約数ペア:

[(1, 217748440), (2, 108874220), (4, 54437110), (5, 43549688), (7, 31106920), (8, 27218555), (10, 21774844), (13, 16749880), (14, 15553460), (20, 10887422), (26, 8374940), (28, 7776730), (35, 6221384), (40, 5443711), (52, 4187470), (56, 3888365), (65, 3349976), (70, 3110692), (91, 2392840), (104, 2093735), (130, 1674988), (140, 1555346), (163, 1335880), (182, 1196420), (260, 837494), (280, 777673), (326, 667940), (364, 598210), (367, 593320), (455, 478568), (520, 418747), (652, 333970), (728, 299105), (734, 296660), (815, 267176), (910, 239284), (1141, 190840), (1304, 166985), (1468, 148330), (1630, 133588), (1820, 119642), (1835, 118664), (2119, 102760), (2282, 95420), (2569, 84760), (2936, 74165), (3260, 66794), (3640, 59821), (3670, 59332), (4238, 51380), (4564, 47710), (4771, 45640), (5138, 42380), (5705, 38168), (6520, 33397), (7340, 29666), (8476, 25690), (9128, 23855), (9542, 22820), (10276, 21190), (10595, 20552), (11410, 19084), (12845, 16952), (14680, 14833)]