19571860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 32682860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 71, 77, 110, 140, 142, 154, 179, 220, 284, 308, 355, 358, 385, 497, 710, 716, 770, 781, 895, 994, 1253, 1420, 1540, 1562, 1790, 1969, 1988, 2485, 2506, 3124, 3580, 3905, 3938, 4970, 5012, 5467, 6265, 7810, 7876, 9845, 9940, 10934, 12530, 12709, 13783, 15620, 19690, 21868, 25060, 25418, 27335, 27566, 39380, 50836, 54670, 55132, 63545, 68915, 88963, 109340, 127090, 137830, 139799, 177926, 254180, 275660, 279598, 355852, 444815, 559196, 698995, 889630, 978593, 1397990, 1779260, 1957186, 2795980, 3914372, 4892965, 9785930, 19571860]

約数ペア:

[(1, 19571860), (2, 9785930), (4, 4892965), (5, 3914372), (7, 2795980), (10, 1957186), (11, 1779260), (14, 1397990), (20, 978593), (22, 889630), (28, 698995), (35, 559196), (44, 444815), (55, 355852), (70, 279598), (71, 275660), (77, 254180), (110, 177926), (140, 139799), (142, 137830), (154, 127090), (179, 109340), (220, 88963), (284, 68915), (308, 63545), (355, 55132), (358, 54670), (385, 50836), (497, 39380), (710, 27566), (716, 27335), (770, 25418), (781, 25060), (895, 21868), (994, 19690), (1253, 15620), (1420, 13783), (1540, 12709), (1562, 12530), (1790, 10934), (1969, 9940), (1988, 9845), (2485, 7876), (2506, 7810), (3124, 6265), (3580, 5467), (3905, 5012), (3938, 4970)]