1971209520

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{43457}}^1$

素因数の和:43489

約数の個数: 200

約数和(自身を含む): 7824525984

約数和(自身を除く): 5853316464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 945, 1008, 1080, 1134, 1260, 1296, 1512, 1620, 1680, 1890, 2160, 2268, 2520, 2835, 3024, 3240, 3780, 4536, 5040, 5670, 6480, 7560, 9072, 11340, 15120, 22680, 43457, 45360, 86914, 130371, 173828, 217285, 260742, 304199, 347656, 391113, 434570, 521484, 608398, 651855, 695312, 782226, 869140, 912597, 1042968, 1173339, 1216796, 1303710, 1520995, 1564452, 1738280, 1825194, 1955565, 2085936, 2346678, 2433592, 2607420, 2737791, 3041990, 3128904, 3476560, 3520017, 3650388, 3911130, 4562985, 4693356, 4867184, 5214840, 5475582, 5866695, 6083980, 6257808, 7040034, 7300776, 7822260, 8213373, 9125970, 9386712, 10429680, 10951164, 11733390, 12167960, 13688955, 14080068, 14601552, 15644520, 16426746, 17600085, 18251940, 18773424, 21902328, 23466780, 24335920, 24640119, 27377910, 28160136, 31289040, 32853492, 35200170, 36503880, 41066865, 43804656, 46933560, 49280238, 54755820, 56320272, 65706984, 70400340, 73007760, 82133730, 93867120, 98560476, 109511640, 123200595, 131413968, 140800680, 164267460, 197120952, 219023280, 246401190, 281601360, 328534920, 394241904, 492802380, 657069840, 985604760, 1971209520]

約数ペア:

[(1, 1971209520), (2, 985604760), (3, 657069840), (4, 492802380), (5, 394241904), (6, 328534920), (7, 281601360), (8, 246401190), (9, 219023280), (10, 197120952), (12, 164267460), (14, 140800680), (15, 131413968), (16, 123200595), (18, 109511640), (20, 98560476), (21, 93867120), (24, 82133730), (27, 73007760), (28, 70400340), (30, 65706984), (35, 56320272), (36, 54755820), (40, 49280238), (42, 46933560), (45, 43804656), (48, 41066865), (54, 36503880), (56, 35200170), (60, 32853492), (63, 31289040), (70, 28160136), (72, 27377910), (80, 24640119), (81, 24335920), (84, 23466780), (90, 21902328), (105, 18773424), (108, 18251940), (112, 17600085), (120, 16426746), (126, 15644520), (135, 14601552), (140, 14080068), (144, 13688955), (162, 12167960), (168, 11733390), (180, 10951164), (189, 10429680), (210, 9386712), (216, 9125970), (240, 8213373), (252, 7822260), (270, 7300776), (280, 7040034), (315, 6257808), (324, 6083980), (336, 5866695), (360, 5475582), (378, 5214840), (405, 4867184), (420, 4693356), (432, 4562985), (504, 3911130), (540, 3650388), (560, 3520017), (567, 3476560), (630, 3128904), (648, 3041990), (720, 2737791), (756, 2607420), (810, 2433592), (840, 2346678), (945, 2085936), (1008, 1955565), (1080, 1825194), (1134, 1738280), (1260, 1564452), (1296, 1520995), (1512, 1303710), (1620, 1216796), (1680, 1173339), (1890, 1042968), (2160, 912597), (2268, 869140), (2520, 782226), (2835, 695312), (3024, 651855), (3240, 608398), (3780, 521484), (4536, 434570), (5040, 391113), (5670, 347656), (6480, 304199), (7560, 260742), (9072, 217285), (11340, 173828), (15120, 130371), (22680, 86914), (43457, 45360)]