20449020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{683}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 57456000

約数和(自身を除く): 37006980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 683, 998, 1366, 1497, 1996, 2049, 2495, 2732, 2994, 3415, 4098, 4990, 5988, 6830, 7485, 8196, 9980, 10245, 13660, 14970, 20490, 29940, 40980, 340817, 681634, 1022451, 1363268, 1704085, 2044902, 3408170, 4089804, 5112255, 6816340, 10224510, 20449020]

約数ペア:

[(1, 20449020), (2, 10224510), (3, 6816340), (4, 5112255), (5, 4089804), (6, 3408170), (10, 2044902), (12, 1704085), (15, 1363268), (20, 1022451), (30, 681634), (60, 340817), (499, 40980), (683, 29940), (998, 20490), (1366, 14970), (1497, 13660), (1996, 10245), (2049, 9980), (2495, 8196), (2732, 7485), (2994, 6830), (3415, 5988), (4098, 4990)]