31451490

素因数分解:

$2^1\times 3^5\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 99223488

約数和(自身を除く): 67771998

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 43, 45, 54, 63, 70, 81, 86, 90, 105, 126, 129, 135, 162, 189, 210, 215, 243, 258, 270, 301, 315, 378, 387, 405, 430, 486, 567, 602, 630, 645, 774, 810, 903, 945, 1134, 1161, 1215, 1290, 1505, 1701, 1806, 1849, 1890, 1935, 2322, 2430, 2709, 2835, 3010, 3402, 3483, 3698, 3870, 4515, 5418, 5547, 5670, 5805, 6966, 8127, 8505, 9030, 9245, 10449, 11094, 11610, 12943, 13545, 16254, 16641, 17010, 17415, 18490, 20898, 24381, 25886, 27090, 27735, 33282, 34830, 38829, 40635, 48762, 49923, 52245, 55470, 64715, 73143, 77658, 81270, 83205, 99846, 104490, 116487, 121905, 129430, 146286, 149769, 166410, 194145, 232974, 243810, 249615, 299538, 349461, 365715, 388290, 449307, 499230, 582435, 698922, 731430, 748845, 898614, 1048383, 1164870, 1497690, 1747305, 2096766, 2246535, 3145149, 3494610, 4493070, 5241915, 6290298, 10483830, 15725745, 31451490]

約数ペア:

[(1, 31451490), (2, 15725745), (3, 10483830), (5, 6290298), (6, 5241915), (7, 4493070), (9, 3494610), (10, 3145149), (14, 2246535), (15, 2096766), (18, 1747305), (21, 1497690), (27, 1164870), (30, 1048383), (35, 898614), (42, 748845), (43, 731430), (45, 698922), (54, 582435), (63, 499230), (70, 449307), (81, 388290), (86, 365715), (90, 349461), (105, 299538), (126, 249615), (129, 243810), (135, 232974), (162, 194145), (189, 166410), (210, 149769), (215, 146286), (243, 129430), (258, 121905), (270, 116487), (301, 104490), (315, 99846), (378, 83205), (387, 81270), (405, 77658), (430, 73143), (486, 64715), (567, 55470), (602, 52245), (630, 49923), (645, 48762), (774, 40635), (810, 38829), (903, 34830), (945, 33282), (1134, 27735), (1161, 27090), (1215, 25886), (1290, 24381), (1505, 20898), (1701, 18490), (1806, 17415), (1849, 17010), (1890, 16641), (1935, 16254), (2322, 13545), (2430, 12943), (2709, 11610), (2835, 11094), (3010, 10449), (3402, 9245), (3483, 9030), (3698, 8505), (3870, 8127), (4515, 6966), (5418, 5805), (5547, 5670)]