8402420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1901}}^1$

素因数の和:1940

約数の個数: 48

約数和(自身を含む): 20130768

約数和(自身を除く): 11728348

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 1901, 2210, 3802, 4420, 7604, 9505, 19010, 24713, 32317, 38020, 49426, 64634, 98852, 123565, 129268, 161585, 247130, 323170, 420121, 494260, 646340, 840242, 1680484, 2100605, 4201210, 8402420]

約数ペア:

[(1, 8402420), (2, 4201210), (4, 2100605), (5, 1680484), (10, 840242), (13, 646340), (17, 494260), (20, 420121), (26, 323170), (34, 247130), (52, 161585), (65, 129268), (68, 123565), (85, 98852), (130, 64634), (170, 49426), (221, 38020), (260, 32317), (340, 24713), (442, 19010), (884, 9505), (1105, 7604), (1901, 4420), (2210, 3802)]