8723780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 20752200

約数和(自身を除く): 12028420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 89, 116, 130, 145, 169, 178, 260, 290, 338, 356, 377, 445, 580, 676, 754, 845, 890, 1157, 1508, 1690, 1780, 1885, 2314, 2581, 3380, 3770, 4628, 4901, 5162, 5785, 7540, 9802, 10324, 11570, 12905, 15041, 19604, 23140, 24505, 25810, 30082, 33553, 49010, 51620, 60164, 67106, 75205, 98020, 134212, 150410, 167765, 300820, 335530, 436189, 671060, 872378, 1744756, 2180945, 4361890, 8723780]

約数ペア:

[(1, 8723780), (2, 4361890), (4, 2180945), (5, 1744756), (10, 872378), (13, 671060), (20, 436189), (26, 335530), (29, 300820), (52, 167765), (58, 150410), (65, 134212), (89, 98020), (116, 75205), (130, 67106), (145, 60164), (169, 51620), (178, 49010), (260, 33553), (290, 30082), (338, 25810), (356, 24505), (377, 23140), (445, 19604), (580, 15041), (676, 12905), (754, 11570), (845, 10324), (890, 9802), (1157, 7540), (1508, 5785), (1690, 5162), (1780, 4901), (1885, 4628), (2314, 3770), (2581, 3380)]