128858640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31583}}^1$

素因数の和:31616

約数の個数: 80

約数和(自身を含む): 422972928

約数和(自身を除く): 294114288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 31583, 63166, 94749, 126332, 157915, 189498, 252664, 315830, 378996, 473745, 505328, 536911, 631660, 757992, 947490, 1073822, 1263320, 1515984, 1610733, 1894980, 2147644, 2526640, 2684555, 3221466, 3789960, 4295288, 5369110, 6442932, 7579920, 8053665, 8590576, 10738220, 12885864, 16107330, 21476440, 25771728, 32214660, 42952880, 64429320, 128858640]

約数ペア:

[(1, 128858640), (2, 64429320), (3, 42952880), (4, 32214660), (5, 25771728), (6, 21476440), (8, 16107330), (10, 12885864), (12, 10738220), (15, 8590576), (16, 8053665), (17, 7579920), (20, 6442932), (24, 5369110), (30, 4295288), (34, 3789960), (40, 3221466), (48, 2684555), (51, 2526640), (60, 2147644), (68, 1894980), (80, 1610733), (85, 1515984), (102, 1263320), (120, 1073822), (136, 947490), (170, 757992), (204, 631660), (240, 536911), (255, 505328), (272, 473745), (340, 378996), (408, 315830), (510, 252664), (680, 189498), (816, 157915), (1020, 126332), (1360, 94749), (2040, 63166), (4080, 31583)]