64974585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 120481344

約数和(自身を除く): 55506759

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 71, 95, 169, 195, 213, 247, 285, 355, 361, 507, 741, 845, 923, 1065, 1083, 1235, 1349, 1805, 2535, 2769, 3211, 3705, 4047, 4615, 4693, 5415, 6745, 9633, 11999, 13845, 14079, 16055, 17537, 20235, 23465, 25631, 35997, 48165, 52611, 59995, 61009, 70395, 76893, 87685, 128155, 179985, 183027, 227981, 263055, 305045, 333203, 384465, 683943, 915135, 999609, 1139905, 1666015, 3419715, 4331639, 4998045, 12994917, 21658195, 64974585]

約数ペア:

[(1, 64974585), (3, 21658195), (5, 12994917), (13, 4998045), (15, 4331639), (19, 3419715), (39, 1666015), (57, 1139905), (65, 999609), (71, 915135), (95, 683943), (169, 384465), (195, 333203), (213, 305045), (247, 263055), (285, 227981), (355, 183027), (361, 179985), (507, 128155), (741, 87685), (845, 76893), (923, 70395), (1065, 61009), (1083, 59995), (1235, 52611), (1349, 48165), (1805, 35997), (2535, 25631), (2769, 23465), (3211, 20235), (3705, 17537), (4047, 16055), (4615, 14079), (4693, 13845), (5415, 11999), (6745, 9633)]