127742420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28901}}^1$

素因数の和:28940

約数の個数: 48

約数和(自身を含む): 305898768

約数和(自身を除く): 178156348

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, 2210, 4420, 28901, 57802, 115604, 144505, 289010, 375713, 491317, 578020, 751426, 982634, 1502852, 1878565, 1965268, 2456585, 3757130, 4913170, 6387121, 7514260, 9826340, 12774242, 25548484, 31935605, 63871210, 127742420]

約数ペア:

[(1, 127742420), (2, 63871210), (4, 31935605), (5, 25548484), (10, 12774242), (13, 9826340), (17, 7514260), (20, 6387121), (26, 4913170), (34, 3757130), (52, 2456585), (65, 1965268), (68, 1878565), (85, 1502852), (130, 982634), (170, 751426), (221, 578020), (260, 491317), (340, 375713), (442, 289010), (884, 144505), (1105, 115604), (2210, 57802), (4420, 28901)]