781661530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{5279}}^1$

素因数の和:5383

約数の個数: 64

約数和(自身を含む): 1628605440

約数和(自身を除く): 846943910

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 67, 85, 130, 134, 170, 221, 335, 442, 670, 871, 1105, 1139, 1742, 2210, 2278, 4355, 5279, 5695, 8710, 10558, 11390, 14807, 26395, 29614, 52790, 68627, 74035, 89743, 137254, 148070, 179486, 343135, 353693, 448715, 686270, 707386, 897430, 1166659, 1768465, 2333318, 3536930, 4598009, 5833295, 6012781, 9196018, 11666590, 12025562, 22990045, 30063905, 45980090, 60127810, 78166153, 156332306, 390830765, 781661530]

約数ペア:

[(1, 781661530), (2, 390830765), (5, 156332306), (10, 78166153), (13, 60127810), (17, 45980090), (26, 30063905), (34, 22990045), (65, 12025562), (67, 11666590), (85, 9196018), (130, 6012781), (134, 5833295), (170, 4598009), (221, 3536930), (335, 2333318), (442, 1768465), (670, 1166659), (871, 897430), (1105, 707386), (1139, 686270), (1742, 448715), (2210, 353693), (2278, 343135), (4355, 179486), (5279, 148070), (5695, 137254), (8710, 89743), (10558, 74035), (11390, 68627), (14807, 52790), (26395, 29614)]