406440710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{20983}}^1$

素因数の和:21152

約数の個数: 32

約数和(自身を含む): 793195200

約数和(自身を除く): 386754490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 3874, 9685, 19370, 20983, 41966, 104915, 209830, 272779, 545558, 1363895, 2727790, 3126467, 6252934, 15632335, 31264670, 40644071, 81288142, 203220355, 406440710]

約数ペア:

[(1, 406440710), (2, 203220355), (5, 81288142), (10, 40644071), (13, 31264670), (26, 15632335), (65, 6252934), (130, 3126467), (149, 2727790), (298, 1363895), (745, 545558), (1490, 272779), (1937, 209830), (3874, 104915), (9685, 41966), (19370, 20983)]