21406320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2287}}^1$

素因数の和:2319

約数の個数: 120

約数和(自身を含む): 77453376

約数和(自身を除く): 56047056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2287, 2340, 3120, 4574, 4680, 6861, 9148, 9360, 11435, 13722, 18296, 20583, 22870, 27444, 29731, 34305, 36592, 41166, 45740, 54888, 59462, 68610, 82332, 89193, 91480, 102915, 109776, 118924, 137220, 148655, 164664, 178386, 182960, 205830, 237848, 267579, 274440, 297310, 329328, 356772, 411660, 445965, 475696, 535158, 548880, 594620, 713544, 823320, 891930, 1070316, 1189240, 1337895, 1427088, 1646640, 1783860, 2140632, 2378480, 2675790, 3567720, 4281264, 5351580, 7135440, 10703160, 21406320]

約数ペア:

[(1, 21406320), (2, 10703160), (3, 7135440), (4, 5351580), (5, 4281264), (6, 3567720), (8, 2675790), (9, 2378480), (10, 2140632), (12, 1783860), (13, 1646640), (15, 1427088), (16, 1337895), (18, 1189240), (20, 1070316), (24, 891930), (26, 823320), (30, 713544), (36, 594620), (39, 548880), (40, 535158), (45, 475696), (48, 445965), (52, 411660), (60, 356772), (65, 329328), (72, 297310), (78, 274440), (80, 267579), (90, 237848), (104, 205830), (117, 182960), (120, 178386), (130, 164664), (144, 148655), (156, 137220), (180, 118924), (195, 109776), (208, 102915), (234, 91480), (240, 89193), (260, 82332), (312, 68610), (360, 59462), (390, 54888), (468, 45740), (520, 41166), (585, 36592), (624, 34305), (720, 29731), (780, 27444), (936, 22870), (1040, 20583), (1170, 18296), (1560, 13722), (1872, 11435), (2287, 9360), (2340, 9148), (3120, 6861), (4574, 4680)]