28423280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 69590784

約数和(自身を除く): 41167504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 157, 248, 292, 310, 314, 365, 496, 584, 620, 628, 730, 785, 1168, 1240, 1256, 1460, 1570, 2263, 2480, 2512, 2920, 3140, 4526, 4867, 5840, 6280, 9052, 9734, 11315, 11461, 12560, 18104, 19468, 22630, 22922, 24335, 36208, 38936, 45260, 45844, 48670, 57305, 77872, 90520, 91688, 97340, 114610, 181040, 183376, 194680, 229220, 355291, 389360, 458440, 710582, 916880, 1421164, 1776455, 2842328, 3552910, 5684656, 7105820, 14211640, 28423280]

約数ペア:

[(1, 28423280), (2, 14211640), (4, 7105820), (5, 5684656), (8, 3552910), (10, 2842328), (16, 1776455), (20, 1421164), (31, 916880), (40, 710582), (62, 458440), (73, 389360), (80, 355291), (124, 229220), (146, 194680), (155, 183376), (157, 181040), (248, 114610), (292, 97340), (310, 91688), (314, 90520), (365, 77872), (496, 57305), (584, 48670), (620, 45844), (628, 45260), (730, 38936), (785, 36208), (1168, 24335), (1240, 22922), (1256, 22630), (1460, 19468), (1570, 18104), (2263, 12560), (2480, 11461), (2512, 11315), (2920, 9734), (3140, 9052), (4526, 6280), (4867, 5840)]