280604830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 578907648

約数和(自身を除く): 298302818

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 197, 230, 253, 394, 506, 563, 985, 1126, 1265, 1970, 2167, 2530, 2815, 4334, 4531, 5630, 6193, 9062, 10835, 12386, 12949, 21670, 22655, 25898, 30965, 45310, 49841, 61930, 64745, 99682, 110911, 129490, 142439, 221822, 249205, 284878, 498410, 554555, 712195, 1109110, 1220021, 1424390, 2440042, 2550953, 5101906, 6100105, 12200210, 12754765, 25509530, 28060483, 56120966, 140302415, 280604830]

約数ペア:

[(1, 280604830), (2, 140302415), (5, 56120966), (10, 28060483), (11, 25509530), (22, 12754765), (23, 12200210), (46, 6100105), (55, 5101906), (110, 2550953), (115, 2440042), (197, 1424390), (230, 1220021), (253, 1109110), (394, 712195), (506, 554555), (563, 498410), (985, 284878), (1126, 249205), (1265, 221822), (1970, 142439), (2167, 129490), (2530, 110911), (2815, 99682), (4334, 64745), (4531, 61930), (5630, 49841), (6193, 45310), (9062, 30965), (10835, 25898), (12386, 22655), (12949, 21670)]