13238860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 29094912

約数和(自身を除く): 15856052

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 163, 262, 310, 326, 524, 620, 652, 655, 815, 1310, 1630, 2620, 3260, 4061, 5053, 8122, 10106, 16244, 20212, 20305, 21353, 25265, 40610, 42706, 50530, 81220, 85412, 101060, 106765, 213530, 427060, 661943, 1323886, 2647772, 3309715, 6619430, 13238860]

約数ペア:

[(1, 13238860), (2, 6619430), (4, 3309715), (5, 2647772), (10, 1323886), (20, 661943), (31, 427060), (62, 213530), (124, 106765), (131, 101060), (155, 85412), (163, 81220), (262, 50530), (310, 42706), (326, 40610), (524, 25265), (620, 21353), (652, 20305), (655, 20212), (815, 16244), (1310, 10106), (1630, 8122), (2620, 5053), (3260, 4061)]