81691600

素因数分解:

$2^4\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1708

約数の個数: 60

約数和(自身を含む): 197889120

約数和(自身を除く): 116197520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 131, 200, 262, 400, 524, 655, 1048, 1310, 1559, 2096, 2620, 3118, 3275, 5240, 6236, 6550, 7795, 10480, 12472, 13100, 15590, 24944, 26200, 31180, 38975, 52400, 62360, 77950, 124720, 155900, 204229, 311800, 408458, 623600, 816916, 1021145, 1633832, 2042290, 3267664, 4084580, 5105725, 8169160, 10211450, 16338320, 20422900, 40845800, 81691600]

約数ペア:

[(1, 81691600), (2, 40845800), (4, 20422900), (5, 16338320), (8, 10211450), (10, 8169160), (16, 5105725), (20, 4084580), (25, 3267664), (40, 2042290), (50, 1633832), (80, 1021145), (100, 816916), (131, 623600), (200, 408458), (262, 311800), (400, 204229), (524, 155900), (655, 124720), (1048, 77950), (1310, 62360), (1559, 52400), (2096, 38975), (2620, 31180), (3118, 26200), (3275, 24944), (5240, 15590), (6236, 13100), (6550, 12472), (7795, 10480)]