19774920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 65940480

約数和(自身を除く): 46165560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 211, 213, 220, 264, 284, 330, 355, 422, 426, 440, 568, 633, 660, 710, 781, 844, 852, 1055, 1065, 1266, 1320, 1420, 1562, 1688, 1704, 2110, 2130, 2321, 2343, 2532, 2840, 3124, 3165, 3905, 4220, 4260, 4642, 4686, 5064, 6248, 6330, 6963, 7810, 8440, 8520, 9284, 9372, 11605, 11715, 12660, 13926, 14981, 15620, 18568, 18744, 23210, 23430, 25320, 27852, 29962, 31240, 34815, 44943, 46420, 46860, 55704, 59924, 69630, 74905, 89886, 92840, 93720, 119848, 139260, 149810, 164791, 179772, 224715, 278520, 299620, 329582, 359544, 449430, 494373, 599240, 659164, 823955, 898860, 988746, 1318328, 1647910, 1797720, 1977492, 2471865, 3295820, 3954984, 4943730, 6591640, 9887460, 19774920]

約数ペア:

[(1, 19774920), (2, 9887460), (3, 6591640), (4, 4943730), (5, 3954984), (6, 3295820), (8, 2471865), (10, 1977492), (11, 1797720), (12, 1647910), (15, 1318328), (20, 988746), (22, 898860), (24, 823955), (30, 659164), (33, 599240), (40, 494373), (44, 449430), (55, 359544), (60, 329582), (66, 299620), (71, 278520), (88, 224715), (110, 179772), (120, 164791), (132, 149810), (142, 139260), (165, 119848), (211, 93720), (213, 92840), (220, 89886), (264, 74905), (284, 69630), (330, 59924), (355, 55704), (422, 46860), (426, 46420), (440, 44943), (568, 34815), (633, 31240), (660, 29962), (710, 27852), (781, 25320), (844, 23430), (852, 23210), (1055, 18744), (1065, 18568), (1266, 15620), (1320, 14981), (1420, 13926), (1562, 12660), (1688, 11715), (1704, 11605), (2110, 9372), (2130, 9284), (2321, 8520), (2343, 8440), (2532, 7810), (2840, 6963), (3124, 6330), (3165, 6248), (3905, 5064), (4220, 4686), (4260, 4642)]