394394455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 614154240

約数和(自身を除く): 219759785

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 169, 223, 299, 455, 805, 845, 1115, 1183, 1495, 1561, 2093, 2197, 2899, 3887, 5129, 5915, 7805, 10465, 10985, 14495, 15379, 19435, 20293, 25645, 27209, 35903, 37687, 50531, 66677, 76895, 101465, 136045, 179515, 188435, 252655, 263809, 333385, 353717, 466739, 489931, 866801, 1319045, 1768585, 2333695, 2449655, 3429517, 4334005, 6067607, 11268413, 17147585, 30338035, 56342065, 78878891, 394394455]

約数ペア:

[(1, 394394455), (5, 78878891), (7, 56342065), (13, 30338035), (23, 17147585), (35, 11268413), (65, 6067607), (91, 4334005), (115, 3429517), (161, 2449655), (169, 2333695), (223, 1768585), (299, 1319045), (455, 866801), (805, 489931), (845, 466739), (1115, 353717), (1183, 333385), (1495, 263809), (1561, 252655), (2093, 188435), (2197, 179515), (2899, 136045), (3887, 101465), (5129, 76895), (5915, 66677), (7805, 50531), (10465, 37687), (10985, 35903), (14495, 27209), (15379, 25645), (19435, 20293)]