68390270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 140434560

約数和(自身を除く): 72044290

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 89, 115, 130, 178, 230, 257, 299, 445, 514, 598, 890, 1157, 1285, 1495, 2047, 2314, 2570, 2990, 3341, 4094, 5785, 5911, 6682, 10235, 11570, 11822, 16705, 20470, 22873, 26611, 29555, 33410, 45746, 53222, 59110, 76843, 114365, 133055, 153686, 228730, 266110, 297349, 384215, 526079, 594698, 768430, 1052158, 1486745, 2630395, 2973490, 5260790, 6839027, 13678054, 34195135, 68390270]

約数ペア:

[(1, 68390270), (2, 34195135), (5, 13678054), (10, 6839027), (13, 5260790), (23, 2973490), (26, 2630395), (46, 1486745), (65, 1052158), (89, 768430), (115, 594698), (130, 526079), (178, 384215), (230, 297349), (257, 266110), (299, 228730), (445, 153686), (514, 133055), (598, 114365), (890, 76843), (1157, 59110), (1285, 53222), (1495, 45746), (2047, 33410), (2314, 29555), (2570, 26611), (2990, 22873), (3341, 20470), (4094, 16705), (5785, 11822), (5911, 11570), (6682, 10235)]