20500506

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 33931494

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 29, 38, 39, 53, 54, 57, 58, 78, 87, 106, 114, 117, 159, 171, 174, 234, 247, 261, 318, 342, 351, 377, 477, 494, 513, 522, 551, 689, 702, 741, 754, 783, 954, 1007, 1026, 1102, 1131, 1378, 1431, 1482, 1537, 1566, 1653, 2014, 2067, 2223, 2262, 2862, 3021, 3074, 3306, 3393, 4134, 4446, 4611, 4959, 6042, 6201, 6669, 6786, 7163, 9063, 9222, 9918, 10179, 12402, 13091, 13338, 13833, 14326, 14877, 18126, 18603, 19981, 20358, 21489, 26182, 27189, 27666, 29203, 29754, 37206, 39273, 39962, 41499, 42978, 54378, 58406, 59943, 64467, 78546, 82998, 87609, 117819, 119886, 128934, 175218, 179829, 193401, 235638, 262827, 353457, 359658, 379639, 386802, 525654, 539487, 706914, 759278, 788481, 1078974, 1138917, 1576962, 2277834, 3416751, 6833502, 10250253, 20500506]

約数ペア:

[(1, 20500506), (2, 10250253), (3, 6833502), (6, 3416751), (9, 2277834), (13, 1576962), (18, 1138917), (19, 1078974), (26, 788481), (27, 759278), (29, 706914), (38, 539487), (39, 525654), (53, 386802), (54, 379639), (57, 359658), (58, 353457), (78, 262827), (87, 235638), (106, 193401), (114, 179829), (117, 175218), (159, 128934), (171, 119886), (174, 117819), (234, 87609), (247, 82998), (261, 78546), (318, 64467), (342, 59943), (351, 58406), (377, 54378), (477, 42978), (494, 41499), (513, 39962), (522, 39273), (551, 37206), (689, 29754), (702, 29203), (741, 27666), (754, 27189), (783, 26182), (954, 21489), (1007, 20358), (1026, 19981), (1102, 18603), (1131, 18126), (1378, 14877), (1431, 14326), (1482, 13833), (1537, 13338), (1566, 13091), (1653, 12402), (2014, 10179), (2067, 9918), (2223, 9222), (2262, 9063), (2862, 7163), (3021, 6786), (3074, 6669), (3306, 6201), (3393, 6042), (4134, 4959), (4446, 4611)]