1878898840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16651}}^1$

素因数の和:16713

約数の個数: 128

約数和(自身を含む): 5371269120

約数和(自身を除く): 3492370280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 2015, 2170, 2821, 3224, 3640, 4030, 4340, 5642, 8060, 8680, 11284, 14105, 16120, 16651, 22568, 28210, 33302, 56420, 66604, 83255, 112840, 116557, 133208, 166510, 216463, 233114, 333020, 432926, 466228, 516181, 582785, 666040, 865852, 932456, 1032362, 1082315, 1165570, 1515241, 1731704, 2064724, 2164630, 2331140, 2580905, 3030482, 3613267, 4129448, 4329260, 4662280, 5161810, 6060964, 6710353, 7226534, 7576205, 8658520, 10323620, 12121928, 13420706, 14453068, 15152410, 18066335, 20647240, 26841412, 28906136, 30304820, 33551765, 36132670, 46972471, 53682824, 60609640, 67103530, 72265340, 93944942, 134207060, 144530680, 187889884, 234862355, 268414120, 375779768, 469724710, 939449420, 1878898840]

約数ペア:

[(1, 1878898840), (2, 939449420), (4, 469724710), (5, 375779768), (7, 268414120), (8, 234862355), (10, 187889884), (13, 144530680), (14, 134207060), (20, 93944942), (26, 72265340), (28, 67103530), (31, 60609640), (35, 53682824), (40, 46972471), (52, 36132670), (56, 33551765), (62, 30304820), (65, 28906136), (70, 26841412), (91, 20647240), (104, 18066335), (124, 15152410), (130, 14453068), (140, 13420706), (155, 12121928), (182, 10323620), (217, 8658520), (248, 7576205), (260, 7226534), (280, 6710353), (310, 6060964), (364, 5161810), (403, 4662280), (434, 4329260), (455, 4129448), (520, 3613267), (620, 3030482), (728, 2580905), (806, 2331140), (868, 2164630), (910, 2064724), (1085, 1731704), (1240, 1515241), (1612, 1165570), (1736, 1082315), (1820, 1032362), (2015, 932456), (2170, 865852), (2821, 666040), (3224, 582785), (3640, 516181), (4030, 466228), (4340, 432926), (5642, 333020), (8060, 233114), (8680, 216463), (11284, 166510), (14105, 133208), (16120, 116557), (16651, 112840), (22568, 83255), (28210, 66604), (33302, 56420)]