79985680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 199165824

約数和(自身を除く): 119180144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 103, 136, 170, 206, 272, 340, 412, 515, 571, 680, 824, 1030, 1142, 1360, 1648, 1751, 2060, 2284, 2855, 3502, 4120, 4568, 5710, 7004, 8240, 8755, 9136, 9707, 11420, 14008, 17510, 19414, 22840, 28016, 35020, 38828, 45680, 48535, 58813, 70040, 77656, 97070, 117626, 140080, 155312, 194140, 235252, 294065, 388280, 470504, 588130, 776560, 941008, 999821, 1176260, 1999642, 2352520, 3999284, 4705040, 4999105, 7998568, 9998210, 15997136, 19996420, 39992840, 79985680]

約数ペア:

[(1, 79985680), (2, 39992840), (4, 19996420), (5, 15997136), (8, 9998210), (10, 7998568), (16, 4999105), (17, 4705040), (20, 3999284), (34, 2352520), (40, 1999642), (68, 1176260), (80, 999821), (85, 941008), (103, 776560), (136, 588130), (170, 470504), (206, 388280), (272, 294065), (340, 235252), (412, 194140), (515, 155312), (571, 140080), (680, 117626), (824, 97070), (1030, 77656), (1142, 70040), (1360, 58813), (1648, 48535), (1751, 45680), (2060, 38828), (2284, 35020), (2855, 28016), (3502, 22840), (4120, 19414), (4568, 17510), (5710, 14008), (7004, 11420), (8240, 9707), (8755, 9136)]