291058820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{15767}}^1$

素因数の和:15860

約数の個数: 48

約数和(自身を含む): 667554048

約数和(自身を除く): 376495228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 15767, 18460, 31534, 63068, 78835, 157670, 204971, 315340, 409942, 819884, 1024855, 1119457, 2049710, 2238914, 4099420, 4477828, 5597285, 11194570, 14552941, 22389140, 29105882, 58211764, 72764705, 145529410, 291058820]

約数ペア:

[(1, 291058820), (2, 145529410), (4, 72764705), (5, 58211764), (10, 29105882), (13, 22389140), (20, 14552941), (26, 11194570), (52, 5597285), (65, 4477828), (71, 4099420), (130, 2238914), (142, 2049710), (260, 1119457), (284, 1024855), (355, 819884), (710, 409942), (923, 315340), (1420, 204971), (1846, 157670), (3692, 78835), (4615, 63068), (9230, 31534), (15767, 18460)]