87419920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:825

約数の個数: 120

約数和(自身を含む): 244906200

約数和(自身を除く): 157486280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 196, 203, 232, 245, 280, 290, 392, 406, 464, 490, 560, 580, 769, 784, 812, 980, 1015, 1160, 1421, 1538, 1624, 1960, 2030, 2320, 2842, 3076, 3248, 3845, 3920, 4060, 5383, 5684, 6152, 7105, 7690, 8120, 10766, 11368, 12304, 14210, 15380, 16240, 21532, 22301, 22736, 26915, 28420, 30760, 37681, 43064, 44602, 53830, 56840, 61520, 75362, 86128, 89204, 107660, 111505, 113680, 150724, 156107, 178408, 188405, 215320, 223010, 301448, 312214, 356816, 376810, 430640, 446020, 602896, 624428, 753620, 780535, 892040, 1092749, 1248856, 1507240, 1561070, 1784080, 2185498, 2497712, 3014480, 3122140, 4370996, 5463745, 6244280, 8741992, 10927490, 12488560, 17483984, 21854980, 43709960, 87419920]

約数ペア:

[(1, 87419920), (2, 43709960), (4, 21854980), (5, 17483984), (7, 12488560), (8, 10927490), (10, 8741992), (14, 6244280), (16, 5463745), (20, 4370996), (28, 3122140), (29, 3014480), (35, 2497712), (40, 2185498), (49, 1784080), (56, 1561070), (58, 1507240), (70, 1248856), (80, 1092749), (98, 892040), (112, 780535), (116, 753620), (140, 624428), (145, 602896), (196, 446020), (203, 430640), (232, 376810), (245, 356816), (280, 312214), (290, 301448), (392, 223010), (406, 215320), (464, 188405), (490, 178408), (560, 156107), (580, 150724), (769, 113680), (784, 111505), (812, 107660), (980, 89204), (1015, 86128), (1160, 75362), (1421, 61520), (1538, 56840), (1624, 53830), (1960, 44602), (2030, 43064), (2320, 37681), (2842, 30760), (3076, 28420), (3248, 26915), (3845, 22736), (3920, 22301), (4060, 21532), (5383, 16240), (5684, 15380), (6152, 14210), (7105, 12304), (7690, 11368), (8120, 10766)]