28420590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1305

約数の個数: 64

約数和(自身を含む): 75520512

約数和(自身を除く): 47099922

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 1065, 1213, 1562, 2130, 2343, 2426, 3639, 3905, 4686, 6065, 7278, 7810, 11715, 12130, 13343, 18195, 23430, 26686, 36390, 40029, 66715, 80058, 86123, 133430, 172246, 200145, 258369, 400290, 430615, 516738, 861230, 947353, 1291845, 1894706, 2583690, 2842059, 4736765, 5684118, 9473530, 14210295, 28420590]

約数ペア:

[(1, 28420590), (2, 14210295), (3, 9473530), (5, 5684118), (6, 4736765), (10, 2842059), (11, 2583690), (15, 1894706), (22, 1291845), (30, 947353), (33, 861230), (55, 516738), (66, 430615), (71, 400290), (110, 258369), (142, 200145), (165, 172246), (213, 133430), (330, 86123), (355, 80058), (426, 66715), (710, 40029), (781, 36390), (1065, 26686), (1213, 23430), (1562, 18195), (2130, 13343), (2343, 12130), (2426, 11715), (3639, 7810), (3905, 7278), (4686, 6065)]