20483580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26261}}^1$

素因数の和:26286

約数の個数: 48

約数和(自身を含む): 61768224

約数和(自身を除く): 41284644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26261, 52522, 78783, 105044, 131305, 157566, 262610, 315132, 341393, 393915, 525220, 682786, 787830, 1024179, 1365572, 1575660, 1706965, 2048358, 3413930, 4096716, 5120895, 6827860, 10241790, 20483580]

約数ペア:

[(1, 20483580), (2, 10241790), (3, 6827860), (4, 5120895), (5, 4096716), (6, 3413930), (10, 2048358), (12, 1706965), (13, 1575660), (15, 1365572), (20, 1024179), (26, 787830), (30, 682786), (39, 525220), (52, 393915), (60, 341393), (65, 315132), (78, 262610), (130, 157566), (156, 131305), (195, 105044), (260, 78783), (390, 52522), (780, 26261)]