81717480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:968

約数の個数: 192

約数和(自身を含む): 301392000

約数和(自身を除く): 219674520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 52, 57, 60, 65, 72, 76, 78, 90, 95, 104, 114, 117, 120, 130, 152, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 312, 342, 360, 380, 390, 456, 468, 494, 520, 570, 585, 684, 741, 760, 780, 855, 919, 936, 988, 1140, 1170, 1235, 1368, 1482, 1560, 1710, 1838, 1976, 2223, 2280, 2340, 2470, 2757, 2964, 3420, 3676, 3705, 4446, 4595, 4680, 4940, 5514, 5928, 6840, 7352, 7410, 8271, 8892, 9190, 9880, 11028, 11115, 11947, 13785, 14820, 16542, 17461, 17784, 18380, 22056, 22230, 23894, 27570, 29640, 33084, 34922, 35841, 36760, 41355, 44460, 47788, 52383, 55140, 59735, 66168, 69844, 71682, 82710, 87305, 88920, 95576, 104766, 107523, 110280, 119470, 139688, 143364, 157149, 165420, 174610, 179205, 209532, 215046, 226993, 238940, 261915, 286728, 314298, 330840, 349220, 358410, 419064, 430092, 453986, 477880, 523830, 537615, 628596, 680979, 698440, 716820, 785745, 860184, 907972, 1047660, 1075230, 1134965, 1257192, 1361958, 1433640, 1571490, 1815944, 2042937, 2095320, 2150460, 2269930, 2723916, 3142980, 3404895, 4085874, 4300920, 4539860, 5447832, 6285960, 6809790, 8171748, 9079720, 10214685, 13619580, 16343496, 20429370, 27239160, 40858740, 81717480]

約数ペア:

[(1, 81717480), (2, 40858740), (3, 27239160), (4, 20429370), (5, 16343496), (6, 13619580), (8, 10214685), (9, 9079720), (10, 8171748), (12, 6809790), (13, 6285960), (15, 5447832), (18, 4539860), (19, 4300920), (20, 4085874), (24, 3404895), (26, 3142980), (30, 2723916), (36, 2269930), (38, 2150460), (39, 2095320), (40, 2042937), (45, 1815944), (52, 1571490), (57, 1433640), (60, 1361958), (65, 1257192), (72, 1134965), (76, 1075230), (78, 1047660), (90, 907972), (95, 860184), (104, 785745), (114, 716820), (117, 698440), (120, 680979), (130, 628596), (152, 537615), (156, 523830), (171, 477880), (180, 453986), (190, 430092), (195, 419064), (228, 358410), (234, 349220), (247, 330840), (260, 314298), (285, 286728), (312, 261915), (342, 238940), (360, 226993), (380, 215046), (390, 209532), (456, 179205), (468, 174610), (494, 165420), (520, 157149), (570, 143364), (585, 139688), (684, 119470), (741, 110280), (760, 107523), (780, 104766), (855, 95576), (919, 88920), (936, 87305), (988, 82710), (1140, 71682), (1170, 69844), (1235, 66168), (1368, 59735), (1482, 55140), (1560, 52383), (1710, 47788), (1838, 44460), (1976, 41355), (2223, 36760), (2280, 35841), (2340, 34922), (2470, 33084), (2757, 29640), (2964, 27570), (3420, 23894), (3676, 22230), (3705, 22056), (4446, 18380), (4595, 17784), (4680, 17461), (4940, 16542), (5514, 14820), (5928, 13785), (6840, 11947), (7352, 11115), (7410, 11028), (8271, 9880), (8892, 9190)]