31565240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1$

素因数の和:1524

約数の個数: 64

約数和(自身を含む): 82252800

約数和(自身を除く): 50687560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1427, 1580, 2212, 2765, 2854, 3160, 4424, 5530, 5708, 7135, 9989, 11060, 11416, 14270, 19978, 22120, 28540, 39956, 49945, 57080, 79912, 99890, 112733, 199780, 225466, 399560, 450932, 563665, 789131, 901864, 1127330, 1578262, 2254660, 3156524, 3945655, 4509320, 6313048, 7891310, 15782620, 31565240]

約数ペア:

[(1, 31565240), (2, 15782620), (4, 7891310), (5, 6313048), (7, 4509320), (8, 3945655), (10, 3156524), (14, 2254660), (20, 1578262), (28, 1127330), (35, 901864), (40, 789131), (56, 563665), (70, 450932), (79, 399560), (140, 225466), (158, 199780), (280, 112733), (316, 99890), (395, 79912), (553, 57080), (632, 49945), (790, 39956), (1106, 28540), (1427, 22120), (1580, 19978), (2212, 14270), (2765, 11416), (2854, 11060), (3160, 9989), (4424, 7135), (5530, 5708)]