90490240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4561}}^1$

素因数の和:4611

約数の個数: 64

約数和(自身を含む): 223355520

約数和(自身を除く): 132865280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4561, 4960, 9122, 9920, 18244, 19840, 22805, 36488, 45610, 72976, 91220, 141391, 145952, 182440, 282782, 291904, 364880, 565564, 583808, 706955, 729760, 1131128, 1413910, 1459520, 2262256, 2827820, 2919040, 4524512, 5655640, 9049024, 11311280, 18098048, 22622560, 45245120, 90490240]

約数ペア:

[(1, 90490240), (2, 45245120), (4, 22622560), (5, 18098048), (8, 11311280), (10, 9049024), (16, 5655640), (20, 4524512), (31, 2919040), (32, 2827820), (40, 2262256), (62, 1459520), (64, 1413910), (80, 1131128), (124, 729760), (128, 706955), (155, 583808), (160, 565564), (248, 364880), (310, 291904), (320, 282782), (496, 182440), (620, 145952), (640, 141391), (992, 91220), (1240, 72976), (1984, 45610), (2480, 36488), (3968, 22805), (4561, 19840), (4960, 18244), (9122, 9920)]