19891360

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 50948352

約数和(自身を除く): 31056992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 71, 80, 85, 103, 136, 142, 160, 170, 206, 272, 284, 340, 355, 412, 515, 544, 568, 680, 710, 824, 1030, 1136, 1207, 1360, 1420, 1648, 1751, 2060, 2272, 2414, 2720, 2840, 3296, 3502, 4120, 4828, 5680, 6035, 7004, 7313, 8240, 8755, 9656, 11360, 12070, 14008, 14626, 16480, 17510, 19312, 24140, 28016, 29252, 35020, 36565, 38624, 48280, 56032, 58504, 70040, 73130, 96560, 117008, 124321, 140080, 146260, 193120, 234016, 248642, 280160, 292520, 497284, 585040, 621605, 994568, 1170080, 1243210, 1989136, 2486420, 3978272, 4972840, 9945680, 19891360]

約数ペア:

[(1, 19891360), (2, 9945680), (4, 4972840), (5, 3978272), (8, 2486420), (10, 1989136), (16, 1243210), (17, 1170080), (20, 994568), (32, 621605), (34, 585040), (40, 497284), (68, 292520), (71, 280160), (80, 248642), (85, 234016), (103, 193120), (136, 146260), (142, 140080), (160, 124321), (170, 117008), (206, 96560), (272, 73130), (284, 70040), (340, 58504), (355, 56032), (412, 48280), (515, 38624), (544, 36565), (568, 35020), (680, 29252), (710, 28016), (824, 24140), (1030, 19312), (1136, 17510), (1207, 16480), (1360, 14626), (1420, 14008), (1648, 12070), (1751, 11360), (2060, 9656), (2272, 8755), (2414, 8240), (2720, 7313), (2840, 7004), (3296, 6035), (3502, 5680), (4120, 4828)]