28239640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4937}}^1$

素因数の和:4972

約数の個数: 64

約数和(自身を含む): 74662560

約数和(自身を除く): 46422920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 4937, 5720, 9874, 19748, 24685, 39496, 49370, 54307, 64181, 98740, 108614, 128362, 197480, 217228, 256724, 271535, 320905, 434456, 513448, 543070, 641810, 705991, 1086140, 1283620, 1411982, 2172280, 2567240, 2823964, 3529955, 5647928, 7059910, 14119820, 28239640]

約数ペア:

[(1, 28239640), (2, 14119820), (4, 7059910), (5, 5647928), (8, 3529955), (10, 2823964), (11, 2567240), (13, 2172280), (20, 1411982), (22, 1283620), (26, 1086140), (40, 705991), (44, 641810), (52, 543070), (55, 513448), (65, 434456), (88, 320905), (104, 271535), (110, 256724), (130, 217228), (143, 197480), (220, 128362), (260, 108614), (286, 98740), (440, 64181), (520, 54307), (572, 49370), (715, 39496), (1144, 24685), (1430, 19748), (2860, 9874), (4937, 5720)]