257804924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 495161856

約数和(自身を除く): 237356932

約数列:

[1, 2, 4, 13, 26, 52, 101, 191, 202, 257, 382, 404, 514, 764, 1028, 1313, 2483, 2626, 3341, 4966, 5252, 6682, 9932, 13364, 19291, 25957, 38582, 49087, 51914, 77164, 98174, 103828, 196348, 250783, 337441, 501566, 638131, 674882, 1003132, 1276262, 1349764, 2552524, 4957787, 9915574, 19831148, 64451231, 128902462, 257804924]

約数ペア:

[(1, 257804924), (2, 128902462), (4, 64451231), (13, 19831148), (26, 9915574), (52, 4957787), (101, 2552524), (191, 1349764), (202, 1276262), (257, 1003132), (382, 674882), (404, 638131), (514, 501566), (764, 337441), (1028, 250783), (1313, 196348), (2483, 103828), (2626, 98174), (3341, 77164), (4966, 51914), (5252, 49087), (6682, 38582), (9932, 25957), (13364, 19291)]