87204080

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 209477664

約数和(自身を除く): 122273584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 131, 157, 212, 262, 265, 314, 424, 524, 530, 628, 655, 785, 848, 1048, 1060, 1256, 1310, 1570, 2096, 2120, 2512, 2620, 3140, 4240, 5240, 6280, 6943, 8321, 10480, 12560, 13886, 16642, 20567, 27772, 33284, 34715, 41134, 41605, 55544, 66568, 69430, 82268, 83210, 102835, 111088, 133136, 138860, 164536, 166420, 205670, 277720, 329072, 332840, 411340, 555440, 665680, 822680, 1090051, 1645360, 2180102, 4360204, 5450255, 8720408, 10900510, 17440816, 21801020, 43602040, 87204080]

約数ペア:

[(1, 87204080), (2, 43602040), (4, 21801020), (5, 17440816), (8, 10900510), (10, 8720408), (16, 5450255), (20, 4360204), (40, 2180102), (53, 1645360), (80, 1090051), (106, 822680), (131, 665680), (157, 555440), (212, 411340), (262, 332840), (265, 329072), (314, 277720), (424, 205670), (524, 166420), (530, 164536), (628, 138860), (655, 133136), (785, 111088), (848, 102835), (1048, 83210), (1060, 82268), (1256, 69430), (1310, 66568), (1570, 55544), (2096, 41605), (2120, 41134), (2512, 34715), (2620, 33284), (3140, 27772), (4240, 20567), (5240, 16642), (6280, 13886), (6943, 12560), (8321, 10480)]