12905145

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 26088192

約数和(自身を除く): 13183047

約数列:

[1, 3, 5, 9, 11, 15, 29, 31, 33, 45, 55, 87, 93, 99, 145, 155, 165, 261, 279, 319, 341, 435, 465, 495, 841, 899, 957, 1023, 1305, 1395, 1595, 1705, 2523, 2697, 2871, 3069, 4205, 4495, 4785, 5115, 7569, 8091, 9251, 9889, 12615, 13485, 14355, 15345, 26071, 27753, 29667, 37845, 40455, 46255, 49445, 78213, 83259, 89001, 130355, 138765, 148335, 234639, 286781, 391065, 416295, 445005, 860343, 1173195, 1433905, 2581029, 4301715, 12905145]

約数ペア:

[(1, 12905145), (3, 4301715), (5, 2581029), (9, 1433905), (11, 1173195), (15, 860343), (29, 445005), (31, 416295), (33, 391065), (45, 286781), (55, 234639), (87, 148335), (93, 138765), (99, 130355), (145, 89001), (155, 83259), (165, 78213), (261, 49445), (279, 46255), (319, 40455), (341, 37845), (435, 29667), (465, 27753), (495, 26071), (841, 15345), (899, 14355), (957, 13485), (1023, 12615), (1305, 9889), (1395, 9251), (1595, 8091), (1705, 7569), (2523, 5115), (2697, 4785), (2871, 4495), (3069, 4205)]