8857940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 23783424

約数和(自身を除く): 14925484

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 157, 182, 217, 260, 310, 314, 364, 403, 434, 455, 620, 628, 785, 806, 868, 910, 1085, 1099, 1570, 1612, 1820, 2015, 2041, 2170, 2198, 2821, 3140, 4030, 4082, 4340, 4396, 4867, 5495, 5642, 8060, 8164, 9734, 10205, 10990, 11284, 14105, 14287, 19468, 20410, 21980, 24335, 28210, 28574, 34069, 40820, 48670, 56420, 57148, 63271, 68138, 71435, 97340, 126542, 136276, 142870, 170345, 253084, 285740, 316355, 340690, 442897, 632710, 681380, 885794, 1265420, 1771588, 2214485, 4428970, 8857940]

約数ペア:

[(1, 8857940), (2, 4428970), (4, 2214485), (5, 1771588), (7, 1265420), (10, 885794), (13, 681380), (14, 632710), (20, 442897), (26, 340690), (28, 316355), (31, 285740), (35, 253084), (52, 170345), (62, 142870), (65, 136276), (70, 126542), (91, 97340), (124, 71435), (130, 68138), (140, 63271), (155, 57148), (157, 56420), (182, 48670), (217, 40820), (260, 34069), (310, 28574), (314, 28210), (364, 24335), (403, 21980), (434, 20410), (455, 19468), (620, 14287), (628, 14105), (785, 11284), (806, 10990), (868, 10205), (910, 9734), (1085, 8164), (1099, 8060), (1570, 5642), (1612, 5495), (1820, 4867), (2015, 4396), (2041, 4340), (2170, 4082), (2198, 4030), (2821, 3140)]