261575210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1381}}^1$

素因数の和:1479

約数の個数: 64

約数和(自身を含む): 534933504

約数和(自身を除く): 273358294

約数列:

[1, 2, 5, 10, 13, 26, 31, 47, 62, 65, 94, 130, 155, 235, 310, 403, 470, 611, 806, 1222, 1381, 1457, 2015, 2762, 2914, 3055, 4030, 6110, 6905, 7285, 13810, 14570, 17953, 18941, 35906, 37882, 42811, 64907, 85622, 89765, 94705, 129814, 179530, 189410, 214055, 324535, 428110, 556543, 649070, 843791, 1113086, 1687582, 2012117, 2782715, 4024234, 4218955, 5565430, 8437910, 10060585, 20121170, 26157521, 52315042, 130787605, 261575210]

約数ペア:

[(1, 261575210), (2, 130787605), (5, 52315042), (10, 26157521), (13, 20121170), (26, 10060585), (31, 8437910), (47, 5565430), (62, 4218955), (65, 4024234), (94, 2782715), (130, 2012117), (155, 1687582), (235, 1113086), (310, 843791), (403, 649070), (470, 556543), (611, 428110), (806, 324535), (1222, 214055), (1381, 189410), (1457, 179530), (2015, 129814), (2762, 94705), (2914, 89765), (3055, 85622), (4030, 64907), (6110, 42811), (6905, 37882), (7285, 35906), (13810, 18941), (14570, 17953)]