2017394440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 4821120000

約数和(自身を除く): 2803725560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 149, 155, 179, 244, 248, 298, 305, 310, 358, 488, 596, 610, 620, 716, 745, 895, 1192, 1220, 1240, 1432, 1490, 1790, 1891, 2440, 2980, 3580, 3782, 4619, 5549, 5960, 7160, 7564, 9089, 9238, 9455, 10919, 11098, 15128, 18178, 18476, 18910, 21838, 22196, 23095, 26671, 27745, 36356, 36952, 37820, 43676, 44392, 45445, 46190, 53342, 54595, 55490, 72712, 75640, 87352, 90890, 92380, 106684, 109190, 110980, 133355, 181780, 184760, 213368, 218380, 221960, 266710, 281759, 338489, 363560, 436760, 533420, 563518, 676978, 826801, 1066840, 1127036, 1353956, 1408795, 1626931, 1653602, 1692445, 2254072, 2707912, 2817590, 3253862, 3307204, 3384890, 4134005, 5635180, 6507724, 6614408, 6769780, 8134655, 8268010, 11270360, 13015448, 13539560, 16269310, 16536020, 32538620, 33072040, 50434861, 65077240, 100869722, 201739444, 252174305, 403478888, 504348610, 1008697220, 2017394440]

約数ペア:

[(1, 2017394440), (2, 1008697220), (4, 504348610), (5, 403478888), (8, 252174305), (10, 201739444), (20, 100869722), (31, 65077240), (40, 50434861), (61, 33072040), (62, 32538620), (122, 16536020), (124, 16269310), (149, 13539560), (155, 13015448), (179, 11270360), (244, 8268010), (248, 8134655), (298, 6769780), (305, 6614408), (310, 6507724), (358, 5635180), (488, 4134005), (596, 3384890), (610, 3307204), (620, 3253862), (716, 2817590), (745, 2707912), (895, 2254072), (1192, 1692445), (1220, 1653602), (1240, 1626931), (1432, 1408795), (1490, 1353956), (1790, 1127036), (1891, 1066840), (2440, 826801), (2980, 676978), (3580, 563518), (3782, 533420), (4619, 436760), (5549, 363560), (5960, 338489), (7160, 281759), (7564, 266710), (9089, 221960), (9238, 218380), (9455, 213368), (10919, 184760), (11098, 181780), (15128, 133355), (18178, 110980), (18476, 109190), (18910, 106684), (21838, 92380), (22196, 90890), (23095, 87352), (26671, 75640), (27745, 72712), (36356, 55490), (36952, 54595), (37820, 53342), (43676, 46190), (44392, 45445)]