64315280

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2861}}^1$

素因数の和:3155

約数の個数: 40

約数和(自身を含む): 150117624

約数和(自身を除く): 85802344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 2861, 4496, 5620, 5722, 11240, 11444, 14305, 22480, 22888, 28610, 45776, 57220, 114440, 228880, 803941, 1607882, 3215764, 4019705, 6431528, 8039410, 12863056, 16078820, 32157640, 64315280]

約数ペア:

[(1, 64315280), (2, 32157640), (4, 16078820), (5, 12863056), (8, 8039410), (10, 6431528), (16, 4019705), (20, 3215764), (40, 1607882), (80, 803941), (281, 228880), (562, 114440), (1124, 57220), (1405, 45776), (2248, 28610), (2810, 22888), (2861, 22480), (4496, 14305), (5620, 11444), (5722, 11240)]