207454900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 464970240

約数和(自身を除く): 257515340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 71, 100, 122, 142, 244, 284, 305, 355, 479, 610, 710, 958, 1220, 1420, 1525, 1775, 1916, 2395, 3050, 3550, 4331, 4790, 6100, 7100, 8662, 9580, 11975, 17324, 21655, 23950, 29219, 34009, 43310, 47900, 58438, 68018, 86620, 108275, 116876, 136036, 146095, 170045, 216550, 292190, 340090, 433100, 584380, 680180, 730475, 850225, 1460950, 1700450, 2074549, 2921900, 3400900, 4149098, 8298196, 10372745, 20745490, 41490980, 51863725, 103727450, 207454900]

約数ペア:

[(1, 207454900), (2, 103727450), (4, 51863725), (5, 41490980), (10, 20745490), (20, 10372745), (25, 8298196), (50, 4149098), (61, 3400900), (71, 2921900), (100, 2074549), (122, 1700450), (142, 1460950), (244, 850225), (284, 730475), (305, 680180), (355, 584380), (479, 433100), (610, 340090), (710, 292190), (958, 216550), (1220, 170045), (1420, 146095), (1525, 136036), (1775, 116876), (1916, 108275), (2395, 86620), (3050, 68018), (3550, 58438), (4331, 47900), (4790, 43310), (6100, 34009), (7100, 29219), (8662, 23950), (9580, 21655), (11975, 17324)]