72779280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{43321}}^1$

素因数の和:43344

約数の個数: 80

約数和(自身を含む): 257852544

約数和(自身を除く): 185073264

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 43321, 86642, 129963, 173284, 216605, 259926, 303247, 346568, 433210, 519852, 606494, 649815, 693136, 866420, 909741, 1039704, 1212988, 1299630, 1516235, 1732840, 1819482, 2079408, 2425976, 2599260, 3032470, 3465680, 3638964, 4548705, 4851952, 5198520, 6064940, 7277928, 9097410, 10397040, 12129880, 14555856, 18194820, 24259760, 36389640, 72779280]

約数ペア:

[(1, 72779280), (2, 36389640), (3, 24259760), (4, 18194820), (5, 14555856), (6, 12129880), (7, 10397040), (8, 9097410), (10, 7277928), (12, 6064940), (14, 5198520), (15, 4851952), (16, 4548705), (20, 3638964), (21, 3465680), (24, 3032470), (28, 2599260), (30, 2425976), (35, 2079408), (40, 1819482), (42, 1732840), (48, 1516235), (56, 1299630), (60, 1212988), (70, 1039704), (80, 909741), (84, 866420), (105, 693136), (112, 649815), (120, 606494), (140, 519852), (168, 433210), (210, 346568), (240, 303247), (280, 259926), (336, 216605), (420, 173284), (560, 129963), (840, 86642), (1680, 43321)]