20330730

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 64143360

約数和(自身を除く): 43812630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 347, 378, 434, 465, 558, 630, 651, 694, 837, 930, 945, 1041, 1085, 1302, 1395, 1674, 1735, 1890, 1953, 2082, 2170, 2429, 2790, 3123, 3255, 3470, 3906, 4185, 4858, 5205, 5859, 6246, 6510, 7287, 8370, 9369, 9765, 10410, 10757, 11718, 12145, 14574, 15615, 18738, 19530, 21514, 21861, 24290, 29295, 31230, 32271, 36435, 43722, 46845, 53785, 58590, 64542, 65583, 72870, 75299, 93690, 96813, 107570, 109305, 131166, 150598, 161355, 193626, 218610, 225897, 290439, 322710, 327915, 376495, 451794, 484065, 580878, 655830, 677691, 752990, 968130, 1129485, 1355382, 1452195, 2033073, 2258970, 2904390, 3388455, 4066146, 6776910, 10165365, 20330730]

約数ペア:

[(1, 20330730), (2, 10165365), (3, 6776910), (5, 4066146), (6, 3388455), (7, 2904390), (9, 2258970), (10, 2033073), (14, 1452195), (15, 1355382), (18, 1129485), (21, 968130), (27, 752990), (30, 677691), (31, 655830), (35, 580878), (42, 484065), (45, 451794), (54, 376495), (62, 327915), (63, 322710), (70, 290439), (90, 225897), (93, 218610), (105, 193626), (126, 161355), (135, 150598), (155, 131166), (186, 109305), (189, 107570), (210, 96813), (217, 93690), (270, 75299), (279, 72870), (310, 65583), (315, 64542), (347, 58590), (378, 53785), (434, 46845), (465, 43722), (558, 36435), (630, 32271), (651, 31230), (694, 29295), (837, 24290), (930, 21861), (945, 21514), (1041, 19530), (1085, 18738), (1302, 15615), (1395, 14574), (1674, 12145), (1735, 11718), (1890, 10757), (1953, 10410), (2082, 9765), (2170, 9369), (2429, 8370), (2790, 7287), (3123, 6510), (3255, 6246), (3470, 5859), (3906, 5205), (4185, 4858)]