216955980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:764

約数の個数: 144

約数和(自身を含む): 691891200

約数和(自身を除く): 474935220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 59, 60, 62, 90, 93, 118, 124, 155, 177, 180, 186, 236, 279, 295, 310, 354, 372, 465, 531, 558, 590, 620, 659, 708, 885, 930, 1062, 1116, 1180, 1318, 1395, 1770, 1829, 1860, 1977, 2124, 2636, 2655, 2790, 3295, 3540, 3658, 3954, 5310, 5487, 5580, 5931, 6590, 7316, 7908, 9145, 9885, 10620, 10974, 11862, 13180, 16461, 18290, 19770, 20429, 21948, 23724, 27435, 29655, 32922, 36580, 38881, 39540, 40858, 54870, 59310, 61287, 65844, 77762, 81716, 82305, 102145, 109740, 116643, 118620, 122574, 155524, 164610, 183861, 194405, 204290, 233286, 245148, 306435, 329220, 349929, 367722, 388810, 408580, 466572, 583215, 612870, 699858, 735444, 777620, 919305, 1166430, 1205311, 1225740, 1399716, 1749645, 1838610, 2332860, 2410622, 3499290, 3615933, 3677220, 4821244, 6026555, 6998580, 7231866, 10847799, 12053110, 14463732, 18079665, 21695598, 24106220, 36159330, 43391196, 54238995, 72318660, 108477990, 216955980]

約数ペア:

[(1, 216955980), (2, 108477990), (3, 72318660), (4, 54238995), (5, 43391196), (6, 36159330), (9, 24106220), (10, 21695598), (12, 18079665), (15, 14463732), (18, 12053110), (20, 10847799), (30, 7231866), (31, 6998580), (36, 6026555), (45, 4821244), (59, 3677220), (60, 3615933), (62, 3499290), (90, 2410622), (93, 2332860), (118, 1838610), (124, 1749645), (155, 1399716), (177, 1225740), (180, 1205311), (186, 1166430), (236, 919305), (279, 777620), (295, 735444), (310, 699858), (354, 612870), (372, 583215), (465, 466572), (531, 408580), (558, 388810), (590, 367722), (620, 349929), (659, 329220), (708, 306435), (885, 245148), (930, 233286), (1062, 204290), (1116, 194405), (1180, 183861), (1318, 164610), (1395, 155524), (1770, 122574), (1829, 118620), (1860, 116643), (1977, 109740), (2124, 102145), (2636, 82305), (2655, 81716), (2790, 77762), (3295, 65844), (3540, 61287), (3658, 59310), (3954, 54870), (5310, 40858), (5487, 39540), (5580, 38881), (5931, 36580), (6590, 32922), (7316, 29655), (7908, 27435), (9145, 23724), (9885, 21948), (10620, 20429), (10974, 19770), (11862, 18290), (13180, 16461)]