81073720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22273}}^1$

素因数の和:22304

約数の個数: 64

約数和(自身を含む): 224521920

約数和(自身を除く): 143448200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 22273, 44546, 89092, 111365, 155911, 178184, 222730, 289549, 311822, 445460, 579098, 623644, 779555, 890920, 1158196, 1247288, 1447745, 1559110, 2026843, 2316392, 2895490, 3118220, 4053686, 5790980, 6236440, 8107372, 10134215, 11581960, 16214744, 20268430, 40536860, 81073720]

約数ペア:

[(1, 81073720), (2, 40536860), (4, 20268430), (5, 16214744), (7, 11581960), (8, 10134215), (10, 8107372), (13, 6236440), (14, 5790980), (20, 4053686), (26, 3118220), (28, 2895490), (35, 2316392), (40, 2026843), (52, 1559110), (56, 1447745), (65, 1247288), (70, 1158196), (91, 890920), (104, 779555), (130, 623644), (140, 579098), (182, 445460), (260, 311822), (280, 289549), (364, 222730), (455, 178184), (520, 155911), (728, 111365), (910, 89092), (1820, 44546), (3640, 22273)]