12161920

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:663

約数の個数: 64

約数和(自身を含む): 30061440

約数和(自身を除く): 17899520

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, 613, 620, 640, 992, 1226, 1240, 1984, 2452, 2480, 3065, 3968, 4904, 4960, 6130, 9808, 9920, 12260, 19003, 19616, 19840, 24520, 38006, 39232, 49040, 76012, 78464, 95015, 98080, 152024, 190030, 196160, 304048, 380060, 392320, 608096, 760120, 1216192, 1520240, 2432384, 3040480, 6080960, 12161920]

約数ペア:

[(1, 12161920), (2, 6080960), (4, 3040480), (5, 2432384), (8, 1520240), (10, 1216192), (16, 760120), (20, 608096), (31, 392320), (32, 380060), (40, 304048), (62, 196160), (64, 190030), (80, 152024), (124, 98080), (128, 95015), (155, 78464), (160, 76012), (248, 49040), (310, 39232), (320, 38006), (496, 24520), (613, 19840), (620, 19616), (640, 19003), (992, 12260), (1226, 9920), (1240, 9808), (1984, 6130), (2452, 4960), (2480, 4904), (3065, 3968)]