31421520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1$

素因数の和:411

約数の個数: 200

約数和(自身を含む): 117841416

約数和(自身を除く): 86419896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 260, 270, 312, 324, 351, 360, 373, 390, 405, 432, 468, 520, 540, 585, 624, 648, 702, 720, 746, 780, 810, 936, 1040, 1053, 1080, 1119, 1170, 1296, 1404, 1492, 1560, 1620, 1755, 1865, 1872, 2106, 2160, 2238, 2340, 2808, 2984, 3120, 3240, 3357, 3510, 3730, 4212, 4476, 4680, 4849, 5265, 5595, 5616, 5968, 6480, 6714, 7020, 7460, 8424, 8952, 9360, 9698, 10071, 10530, 11190, 13428, 14040, 14547, 14920, 16785, 16848, 17904, 19396, 20142, 21060, 22380, 24245, 26856, 28080, 29094, 29840, 30213, 33570, 38792, 40284, 42120, 43641, 44760, 48490, 50355, 53712, 58188, 60426, 67140, 72735, 77584, 80568, 84240, 87282, 89520, 96980, 100710, 116376, 120852, 130923, 134280, 145470, 151065, 161136, 174564, 193960, 201420, 218205, 232752, 241704, 261846, 268560, 290940, 302130, 349128, 387920, 392769, 402840, 436410, 483408, 523692, 581880, 604260, 654615, 698256, 785538, 805680, 872820, 1047384, 1163760, 1208520, 1309230, 1571076, 1745640, 1963845, 2094768, 2417040, 2618460, 3142152, 3491280, 3927690, 5236920, 6284304, 7855380, 10473840, 15710760, 31421520]

約数ペア:

[(1, 31421520), (2, 15710760), (3, 10473840), (4, 7855380), (5, 6284304), (6, 5236920), (8, 3927690), (9, 3491280), (10, 3142152), (12, 2618460), (13, 2417040), (15, 2094768), (16, 1963845), (18, 1745640), (20, 1571076), (24, 1309230), (26, 1208520), (27, 1163760), (30, 1047384), (36, 872820), (39, 805680), (40, 785538), (45, 698256), (48, 654615), (52, 604260), (54, 581880), (60, 523692), (65, 483408), (72, 436410), (78, 402840), (80, 392769), (81, 387920), (90, 349128), (104, 302130), (108, 290940), (117, 268560), (120, 261846), (130, 241704), (135, 232752), (144, 218205), (156, 201420), (162, 193960), (180, 174564), (195, 161136), (208, 151065), (216, 145470), (234, 134280), (240, 130923), (260, 120852), (270, 116376), (312, 100710), (324, 96980), (351, 89520), (360, 87282), (373, 84240), (390, 80568), (405, 77584), (432, 72735), (468, 67140), (520, 60426), (540, 58188), (585, 53712), (624, 50355), (648, 48490), (702, 44760), (720, 43641), (746, 42120), (780, 40284), (810, 38792), (936, 33570), (1040, 30213), (1053, 29840), (1080, 29094), (1119, 28080), (1170, 26856), (1296, 24245), (1404, 22380), (1492, 21060), (1560, 20142), (1620, 19396), (1755, 17904), (1865, 16848), (1872, 16785), (2106, 14920), (2160, 14547), (2238, 14040), (2340, 13428), (2808, 11190), (2984, 10530), (3120, 10071), (3240, 9698), (3357, 9360), (3510, 8952), (3730, 8424), (4212, 7460), (4476, 7020), (4680, 6714), (4849, 6480), (5265, 5968), (5595, 5616)]