31065720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1193}}^1$

素因数の和:1245

約数の個数: 128

約数和(自身を含む): 110039040

約数和(自身を除く): 78973320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1193, 1240, 1302, 1736, 1860, 2170, 2386, 2604, 3255, 3579, 3720, 4340, 4772, 5208, 5965, 6510, 7158, 8351, 8680, 9544, 11930, 13020, 14316, 16702, 17895, 23860, 25053, 26040, 28632, 33404, 35790, 36983, 41755, 47720, 50106, 66808, 71580, 73966, 83510, 100212, 110949, 125265, 143160, 147932, 167020, 184915, 200424, 221898, 250530, 258881, 295864, 334040, 369830, 443796, 501060, 517762, 554745, 739660, 776643, 887592, 1002120, 1035524, 1109490, 1294405, 1479320, 1553286, 2071048, 2218980, 2588810, 3106572, 3883215, 4437960, 5177620, 6213144, 7766430, 10355240, 15532860, 31065720]

約数ペア:

[(1, 31065720), (2, 15532860), (3, 10355240), (4, 7766430), (5, 6213144), (6, 5177620), (7, 4437960), (8, 3883215), (10, 3106572), (12, 2588810), (14, 2218980), (15, 2071048), (20, 1553286), (21, 1479320), (24, 1294405), (28, 1109490), (30, 1035524), (31, 1002120), (35, 887592), (40, 776643), (42, 739660), (56, 554745), (60, 517762), (62, 501060), (70, 443796), (84, 369830), (93, 334040), (105, 295864), (120, 258881), (124, 250530), (140, 221898), (155, 200424), (168, 184915), (186, 167020), (210, 147932), (217, 143160), (248, 125265), (280, 110949), (310, 100212), (372, 83510), (420, 73966), (434, 71580), (465, 66808), (620, 50106), (651, 47720), (744, 41755), (840, 36983), (868, 35790), (930, 33404), (1085, 28632), (1193, 26040), (1240, 25053), (1302, 23860), (1736, 17895), (1860, 16702), (2170, 14316), (2386, 13020), (2604, 11930), (3255, 9544), (3579, 8680), (3720, 8351), (4340, 7158), (4772, 6510), (5208, 5965)]