253343840

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17791}}^1$

素因数の和:17895

約数の個数: 48

約数和(自身を含む): 605283840

約数和(自身を除く): 351940000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 17791, 35582, 71164, 88955, 142328, 177910, 284656, 355820, 569312, 711640, 1423280, 1583399, 2846560, 3166798, 6333596, 7916995, 12667192, 15833990, 25334384, 31667980, 50668768, 63335960, 126671920, 253343840]

約数ペア:

[(1, 253343840), (2, 126671920), (4, 63335960), (5, 50668768), (8, 31667980), (10, 25334384), (16, 15833990), (20, 12667192), (32, 7916995), (40, 6333596), (80, 3166798), (89, 2846560), (160, 1583399), (178, 1423280), (356, 711640), (445, 569312), (712, 355820), (890, 284656), (1424, 177910), (1780, 142328), (2848, 88955), (3560, 71164), (7120, 35582), (14240, 17791)]