29972120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 71820000

約数和(自身を除く): 41847880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 349, 380, 452, 565, 698, 760, 904, 1130, 1396, 1745, 2147, 2260, 2792, 3490, 4294, 4520, 6631, 6980, 8588, 10735, 13262, 13960, 17176, 21470, 26524, 33155, 39437, 42940, 53048, 66310, 78874, 85880, 132620, 157748, 197185, 265240, 315496, 394370, 749303, 788740, 1498606, 1577480, 2997212, 3746515, 5994424, 7493030, 14986060, 29972120]

約数ペア:

[(1, 29972120), (2, 14986060), (4, 7493030), (5, 5994424), (8, 3746515), (10, 2997212), (19, 1577480), (20, 1498606), (38, 788740), (40, 749303), (76, 394370), (95, 315496), (113, 265240), (152, 197185), (190, 157748), (226, 132620), (349, 85880), (380, 78874), (452, 66310), (565, 53048), (698, 42940), (760, 39437), (904, 33155), (1130, 26524), (1396, 21470), (1745, 17176), (2147, 13960), (2260, 13262), (2792, 10735), (3490, 8588), (4294, 6980), (4520, 6631)]