51140120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31183}}^1$

素因数の和:31235

約数の個数: 32

約数和(自身を含む): 117875520

約数和(自身を除く): 66735400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31183, 62366, 124732, 155915, 249464, 311830, 623660, 1247320, 1278503, 2557006, 5114012, 6392515, 10228024, 12785030, 25570060, 51140120]

約数ペア:

[(1, 51140120), (2, 25570060), (4, 12785030), (5, 10228024), (8, 6392515), (10, 5114012), (20, 2557006), (40, 1278503), (41, 1247320), (82, 623660), (164, 311830), (205, 249464), (328, 155915), (410, 124732), (820, 62366), (1640, 31183)]