64646920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 169827840

約数和(自身を除く): 105180920

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 103, 104, 130, 136, 142, 170, 206, 221, 260, 284, 340, 355, 412, 442, 515, 520, 568, 680, 710, 824, 884, 923, 1030, 1105, 1207, 1339, 1420, 1751, 1768, 1846, 2060, 2210, 2414, 2678, 2840, 3502, 3692, 4120, 4420, 4615, 4828, 5356, 6035, 6695, 7004, 7313, 7384, 8755, 8840, 9230, 9656, 10712, 12070, 13390, 14008, 14626, 15691, 17510, 18460, 22763, 24140, 26780, 29252, 31382, 35020, 36565, 36920, 45526, 48280, 53560, 58504, 62764, 70040, 73130, 78455, 91052, 95069, 113815, 124321, 125528, 146260, 156910, 182104, 190138, 227630, 248642, 292520, 313820, 380276, 455260, 475345, 497284, 621605, 627640, 760552, 910520, 950690, 994568, 1243210, 1616173, 1901380, 2486420, 3232346, 3802760, 4972840, 6464692, 8080865, 12929384, 16161730, 32323460, 64646920]

約数ペア:

[(1, 64646920), (2, 32323460), (4, 16161730), (5, 12929384), (8, 8080865), (10, 6464692), (13, 4972840), (17, 3802760), (20, 3232346), (26, 2486420), (34, 1901380), (40, 1616173), (52, 1243210), (65, 994568), (68, 950690), (71, 910520), (85, 760552), (103, 627640), (104, 621605), (130, 497284), (136, 475345), (142, 455260), (170, 380276), (206, 313820), (221, 292520), (260, 248642), (284, 227630), (340, 190138), (355, 182104), (412, 156910), (442, 146260), (515, 125528), (520, 124321), (568, 113815), (680, 95069), (710, 91052), (824, 78455), (884, 73130), (923, 70040), (1030, 62764), (1105, 58504), (1207, 53560), (1339, 48280), (1420, 45526), (1751, 36920), (1768, 36565), (1846, 35020), (2060, 31382), (2210, 29252), (2414, 26780), (2678, 24140), (2840, 22763), (3502, 18460), (3692, 17510), (4120, 15691), (4420, 14626), (4615, 14008), (4828, 13390), (5356, 12070), (6035, 10712), (6695, 9656), (7004, 9230), (7313, 8840), (7384, 8755)]