157821620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 379524096

約数和(自身を除く): 221702476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 73, 110, 124, 146, 155, 220, 292, 310, 317, 341, 365, 620, 634, 682, 730, 803, 1268, 1364, 1460, 1585, 1606, 1705, 2263, 3170, 3212, 3410, 3487, 4015, 4526, 6340, 6820, 6974, 8030, 9052, 9827, 11315, 13948, 16060, 17435, 19654, 22630, 23141, 24893, 34870, 39308, 45260, 46282, 49135, 49786, 69740, 92564, 98270, 99572, 108097, 115705, 124465, 196540, 216194, 231410, 248930, 254551, 432388, 462820, 497860, 509102, 540485, 717371, 1018204, 1080970, 1272755, 1434742, 2161940, 2545510, 2869484, 3586855, 5091020, 7173710, 7891081, 14347420, 15782162, 31564324, 39455405, 78910810, 157821620]

約数ペア:

[(1, 157821620), (2, 78910810), (4, 39455405), (5, 31564324), (10, 15782162), (11, 14347420), (20, 7891081), (22, 7173710), (31, 5091020), (44, 3586855), (55, 2869484), (62, 2545510), (73, 2161940), (110, 1434742), (124, 1272755), (146, 1080970), (155, 1018204), (220, 717371), (292, 540485), (310, 509102), (317, 497860), (341, 462820), (365, 432388), (620, 254551), (634, 248930), (682, 231410), (730, 216194), (803, 196540), (1268, 124465), (1364, 115705), (1460, 108097), (1585, 99572), (1606, 98270), (1705, 92564), (2263, 69740), (3170, 49786), (3212, 49135), (3410, 46282), (3487, 45260), (4015, 39308), (4526, 34870), (6340, 24893), (6820, 23141), (6974, 22630), (8030, 19654), (9052, 17435), (9827, 16060), (11315, 13948)]