28171380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:489

約数の個数: 96

約数和(自身を含む): 84913920

約数和(自身を除く): 56742540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 71, 85, 102, 142, 170, 204, 213, 255, 284, 340, 355, 389, 426, 510, 710, 778, 852, 1020, 1065, 1167, 1207, 1420, 1556, 1945, 2130, 2334, 2414, 3621, 3890, 4260, 4668, 4828, 5835, 6035, 6613, 7242, 7780, 11670, 12070, 13226, 14484, 18105, 19839, 23340, 24140, 26452, 27619, 33065, 36210, 39678, 55238, 66130, 72420, 79356, 82857, 99195, 110476, 132260, 138095, 165714, 198390, 276190, 331428, 396780, 414285, 469523, 552380, 828570, 939046, 1408569, 1657140, 1878092, 2347615, 2817138, 4695230, 5634276, 7042845, 9390460, 14085690, 28171380]

約数ペア:

[(1, 28171380), (2, 14085690), (3, 9390460), (4, 7042845), (5, 5634276), (6, 4695230), (10, 2817138), (12, 2347615), (15, 1878092), (17, 1657140), (20, 1408569), (30, 939046), (34, 828570), (51, 552380), (60, 469523), (68, 414285), (71, 396780), (85, 331428), (102, 276190), (142, 198390), (170, 165714), (204, 138095), (213, 132260), (255, 110476), (284, 99195), (340, 82857), (355, 79356), (389, 72420), (426, 66130), (510, 55238), (710, 39678), (778, 36210), (852, 33065), (1020, 27619), (1065, 26452), (1167, 24140), (1207, 23340), (1420, 19839), (1556, 18105), (1945, 14484), (2130, 13226), (2334, 12070), (2414, 11670), (3621, 7780), (3890, 7242), (4260, 6613), (4668, 6035), (4828, 5835)]