90990270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1607

約数の個数: 128

約数和(自身を含む): 286433280

約数和(自身を除く): 195443010

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, 378, 434, 465, 558, 630, 651, 837, 930, 945, 1085, 1302, 1395, 1553, 1674, 1890, 1953, 2170, 2790, 3106, 3255, 3906, 4185, 4659, 5859, 6510, 7765, 8370, 9318, 9765, 10871, 11718, 13977, 15530, 19530, 21742, 23295, 27954, 29295, 32613, 41931, 46590, 48143, 54355, 58590, 65226, 69885, 83862, 96286, 97839, 108710, 139770, 144429, 163065, 195678, 209655, 240715, 288858, 293517, 326130, 337001, 419310, 433287, 481430, 489195, 587034, 674002, 722145, 866574, 978390, 1011003, 1299861, 1444290, 1467585, 1685005, 2022006, 2166435, 2599722, 2935170, 3033009, 3370010, 4332870, 5055015, 6066018, 6499305, 9099027, 10110030, 12998610, 15165045, 18198054, 30330090, 45495135, 90990270]

約数ペア:

[(1, 90990270), (2, 45495135), (3, 30330090), (5, 18198054), (6, 15165045), (7, 12998610), (9, 10110030), (10, 9099027), (14, 6499305), (15, 6066018), (18, 5055015), (21, 4332870), (27, 3370010), (30, 3033009), (31, 2935170), (35, 2599722), (42, 2166435), (45, 2022006), (54, 1685005), (62, 1467585), (63, 1444290), (70, 1299861), (90, 1011003), (93, 978390), (105, 866574), (126, 722145), (135, 674002), (155, 587034), (186, 489195), (189, 481430), (210, 433287), (217, 419310), (270, 337001), (279, 326130), (310, 293517), (315, 288858), (378, 240715), (434, 209655), (465, 195678), (558, 163065), (630, 144429), (651, 139770), (837, 108710), (930, 97839), (945, 96286), (1085, 83862), (1302, 69885), (1395, 65226), (1553, 58590), (1674, 54355), (1890, 48143), (1953, 46590), (2170, 41931), (2790, 32613), (3106, 29295), (3255, 27954), (3906, 23295), (4185, 21742), (4659, 19530), (5859, 15530), (6510, 13977), (7765, 11718), (8370, 10871), (9318, 9765)]