18947370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2557}}^1$

素因数の和:2599

約数の個数: 64

約数和(自身を含む): 51569280

約数和(自身を除く): 32621910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2557, 3705, 5114, 7410, 7671, 12785, 15342, 25570, 33241, 38355, 48583, 66482, 76710, 97166, 99723, 145749, 166205, 199446, 242915, 291498, 332410, 485830, 498615, 631579, 728745, 997230, 1263158, 1457490, 1894737, 3157895, 3789474, 6315790, 9473685, 18947370]

約数ペア:

[(1, 18947370), (2, 9473685), (3, 6315790), (5, 3789474), (6, 3157895), (10, 1894737), (13, 1457490), (15, 1263158), (19, 997230), (26, 728745), (30, 631579), (38, 498615), (39, 485830), (57, 332410), (65, 291498), (78, 242915), (95, 199446), (114, 166205), (130, 145749), (190, 99723), (195, 97166), (247, 76710), (285, 66482), (390, 48583), (494, 38355), (570, 33241), (741, 25570), (1235, 15342), (1482, 12785), (2470, 7671), (2557, 7410), (3705, 5114)]