72720045

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 134691840

約数和(自身を除く): 61971795

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 73, 135, 141, 157, 219, 235, 365, 423, 471, 657, 705, 785, 1095, 1269, 1413, 1971, 2115, 2355, 3285, 3431, 4239, 6345, 7065, 7379, 9855, 10293, 11461, 17155, 21195, 22137, 30879, 34383, 36895, 51465, 57305, 66411, 92637, 103149, 110685, 154395, 171915, 199233, 309447, 332055, 463185, 515745, 538667, 996165, 1547235, 1616001, 2693335, 4848003, 8080005, 14544009, 24240015, 72720045]

約数ペア:

[(1, 72720045), (3, 24240015), (5, 14544009), (9, 8080005), (15, 4848003), (27, 2693335), (45, 1616001), (47, 1547235), (73, 996165), (135, 538667), (141, 515745), (157, 463185), (219, 332055), (235, 309447), (365, 199233), (423, 171915), (471, 154395), (657, 110685), (705, 103149), (785, 92637), (1095, 66411), (1269, 57305), (1413, 51465), (1971, 36895), (2115, 34383), (2355, 30879), (3285, 22137), (3431, 21195), (4239, 17155), (6345, 11461), (7065, 10293), (7379, 9855)]