642188015

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 938843136

約数和(自身を除く): 296655121

約数列:

[1, 5, 7, 35, 43, 53, 83, 97, 215, 265, 301, 371, 415, 485, 581, 679, 1505, 1855, 2279, 2905, 3395, 3569, 4171, 4399, 5141, 8051, 11395, 15953, 17845, 20855, 21995, 24983, 25705, 29197, 30793, 35987, 40255, 56357, 79765, 124915, 145985, 153965, 179935, 189157, 221063, 281785, 346193, 426703, 945785, 1105315, 1324099, 1547441, 1730965, 2133515, 2423351, 2986921, 6620495, 7737205, 12116755, 14934605, 18348229, 91741145, 128437603, 642188015]

約数ペア:

[(1, 642188015), (5, 128437603), (7, 91741145), (35, 18348229), (43, 14934605), (53, 12116755), (83, 7737205), (97, 6620495), (215, 2986921), (265, 2423351), (301, 2133515), (371, 1730965), (415, 1547441), (485, 1324099), (581, 1105315), (679, 945785), (1505, 426703), (1855, 346193), (2279, 281785), (2905, 221063), (3395, 189157), (3569, 179935), (4171, 153965), (4399, 145985), (5141, 124915), (8051, 79765), (11395, 56357), (15953, 40255), (17845, 35987), (20855, 30793), (21995, 29197), (24983, 25705)]