15706522780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{990323}}^1$

素因数の和:990406

約数の個数: 48

約数和(自身を含む): 36103251744

約数和(自身を除く): 20396728964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 15860, 990323, 1980646, 3961292, 4951615, 9903230, 12874199, 19806460, 25748398, 51496796, 60409703, 64370995, 120819406, 128741990, 241638812, 257483980, 302048515, 604097030, 785326139, 1208194060, 1570652278, 3141304556, 3926630695, 7853261390, 15706522780]

約数ペア:

[(1, 15706522780), (2, 7853261390), (4, 3926630695), (5, 3141304556), (10, 1570652278), (13, 1208194060), (20, 785326139), (26, 604097030), (52, 302048515), (61, 257483980), (65, 241638812), (122, 128741990), (130, 120819406), (244, 64370995), (260, 60409703), (305, 51496796), (610, 25748398), (793, 19806460), (1220, 12874199), (1586, 9903230), (3172, 4951615), (3965, 3961292), (7930, 1980646), (15860, 990323)]