19490120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1013}}^1$

素因数の和:1074

約数の個数: 64

約数和(自身を含む): 48550320

約数和(自身を除く): 29060200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1013, 1480, 1924, 2026, 2405, 3848, 4052, 4810, 5065, 8104, 9620, 10130, 13169, 19240, 20260, 26338, 37481, 40520, 52676, 65845, 74962, 105352, 131690, 149924, 187405, 263380, 299848, 374810, 487253, 526760, 749620, 974506, 1499240, 1949012, 2436265, 3898024, 4872530, 9745060, 19490120]

約数ペア:

[(1, 19490120), (2, 9745060), (4, 4872530), (5, 3898024), (8, 2436265), (10, 1949012), (13, 1499240), (20, 974506), (26, 749620), (37, 526760), (40, 487253), (52, 374810), (65, 299848), (74, 263380), (104, 187405), (130, 149924), (148, 131690), (185, 105352), (260, 74962), (296, 65845), (370, 52676), (481, 40520), (520, 37481), (740, 26338), (962, 20260), (1013, 19240), (1480, 13169), (1924, 10130), (2026, 9620), (2405, 8104), (3848, 5065), (4052, 4810)]