64818260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 149538816

約数和(自身を除く): 84720556

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 151, 169, 254, 260, 302, 338, 508, 604, 635, 676, 755, 845, 1270, 1510, 1651, 1690, 1963, 2540, 3020, 3302, 3380, 3926, 6604, 7852, 8255, 9815, 16510, 19177, 19630, 21463, 25519, 33020, 38354, 39260, 42926, 51038, 76708, 85852, 95885, 102076, 107315, 127595, 191770, 214630, 249301, 255190, 383540, 429260, 498602, 510380, 997204, 1246505, 2493010, 3240913, 4986020, 6481826, 12963652, 16204565, 32409130, 64818260]

約数ペア:

[(1, 64818260), (2, 32409130), (4, 16204565), (5, 12963652), (10, 6481826), (13, 4986020), (20, 3240913), (26, 2493010), (52, 1246505), (65, 997204), (127, 510380), (130, 498602), (151, 429260), (169, 383540), (254, 255190), (260, 249301), (302, 214630), (338, 191770), (508, 127595), (604, 107315), (635, 102076), (676, 95885), (755, 85852), (845, 76708), (1270, 51038), (1510, 42926), (1651, 39260), (1690, 38354), (1963, 33020), (2540, 25519), (3020, 21463), (3302, 19630), (3380, 19177), (3926, 16510), (6604, 9815), (7852, 8255)]