12380420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2801}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 29656368

約数和(自身を除く): 17275948

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, 2801, 4420, 5602, 11204, 14005, 28010, 36413, 47617, 56020, 72826, 95234, 145652, 182065, 190468, 238085, 364130, 476170, 619021, 728260, 952340, 1238042, 2476084, 3095105, 6190210, 12380420]

約数ペア:

[(1, 12380420), (2, 6190210), (4, 3095105), (5, 2476084), (10, 1238042), (13, 952340), (17, 728260), (20, 619021), (26, 476170), (34, 364130), (52, 238085), (65, 190468), (68, 182065), (85, 145652), (130, 95234), (170, 72826), (221, 56020), (260, 47617), (340, 36413), (442, 28010), (884, 14005), (1105, 11204), (2210, 5602), (2801, 4420)]