201617990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 425502720

約数和(自身を除く): 223884730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 113, 142, 226, 355, 359, 497, 565, 710, 718, 791, 994, 1130, 1582, 1795, 2485, 2513, 3590, 3955, 4970, 5026, 7910, 8023, 12565, 16046, 25130, 25489, 40115, 40567, 50978, 56161, 80230, 81134, 112322, 127445, 178423, 202835, 254890, 280805, 283969, 356846, 405670, 561610, 567938, 892115, 1419845, 1784230, 2839690, 2880257, 5760514, 14401285, 20161799, 28802570, 40323598, 100808995, 201617990]

約数ペア:

[(1, 201617990), (2, 100808995), (5, 40323598), (7, 28802570), (10, 20161799), (14, 14401285), (35, 5760514), (70, 2880257), (71, 2839690), (113, 1784230), (142, 1419845), (226, 892115), (355, 567938), (359, 561610), (497, 405670), (565, 356846), (710, 283969), (718, 280805), (791, 254890), (994, 202835), (1130, 178423), (1582, 127445), (1795, 112322), (2485, 81134), (2513, 80230), (3590, 56161), (3955, 50978), (4970, 40567), (5026, 40115), (7910, 25489), (8023, 25130), (12565, 16046)]