80245980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 255999744

約数和(自身を除く): 175753764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 73, 90, 93, 124, 146, 155, 180, 186, 197, 219, 279, 292, 310, 365, 372, 394, 438, 465, 558, 591, 620, 657, 730, 788, 876, 930, 985, 1095, 1116, 1182, 1314, 1395, 1460, 1773, 1860, 1970, 2190, 2263, 2364, 2628, 2790, 2955, 3285, 3546, 3940, 4380, 4526, 5580, 5910, 6107, 6570, 6789, 7092, 8865, 9052, 11315, 11820, 12214, 13140, 13578, 14381, 17730, 18321, 20367, 22630, 24428, 27156, 28762, 30535, 33945, 35460, 36642, 40734, 43143, 45260, 54963, 57524, 61070, 67890, 71905, 73284, 81468, 86286, 91605, 101835, 109926, 122140, 129429, 135780, 143810, 172572, 183210, 203670, 215715, 219852, 258858, 274815, 287620, 366420, 407340, 431430, 445811, 517716, 549630, 647145, 862860, 891622, 1099260, 1294290, 1337433, 1783244, 2229055, 2588580, 2674866, 4012299, 4458110, 5349732, 6687165, 8024598, 8916220, 13374330, 16049196, 20061495, 26748660, 40122990, 80245980]

約数ペア:

[(1, 80245980), (2, 40122990), (3, 26748660), (4, 20061495), (5, 16049196), (6, 13374330), (9, 8916220), (10, 8024598), (12, 6687165), (15, 5349732), (18, 4458110), (20, 4012299), (30, 2674866), (31, 2588580), (36, 2229055), (45, 1783244), (60, 1337433), (62, 1294290), (73, 1099260), (90, 891622), (93, 862860), (124, 647145), (146, 549630), (155, 517716), (180, 445811), (186, 431430), (197, 407340), (219, 366420), (279, 287620), (292, 274815), (310, 258858), (365, 219852), (372, 215715), (394, 203670), (438, 183210), (465, 172572), (558, 143810), (591, 135780), (620, 129429), (657, 122140), (730, 109926), (788, 101835), (876, 91605), (930, 86286), (985, 81468), (1095, 73284), (1116, 71905), (1182, 67890), (1314, 61070), (1395, 57524), (1460, 54963), (1773, 45260), (1860, 43143), (1970, 40734), (2190, 36642), (2263, 35460), (2364, 33945), (2628, 30535), (2790, 28762), (2955, 27156), (3285, 24428), (3546, 22630), (3940, 20367), (4380, 18321), (4526, 17730), (5580, 14381), (5910, 13578), (6107, 13140), (6570, 12214), (6789, 11820), (7092, 11315), (8865, 9052)]