40085240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 97947360

約数和(自身を除く): 57862120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 491, 520, 628, 785, 982, 1256, 1570, 1964, 2041, 2455, 3140, 3928, 4082, 4910, 6280, 6383, 8164, 9820, 10205, 12766, 16328, 19640, 20410, 25532, 31915, 40820, 51064, 63830, 77087, 81640, 127660, 154174, 255320, 308348, 385435, 616696, 770870, 1002131, 1541740, 2004262, 3083480, 4008524, 5010655, 8017048, 10021310, 20042620, 40085240]

約数ペア:

[(1, 40085240), (2, 20042620), (4, 10021310), (5, 8017048), (8, 5010655), (10, 4008524), (13, 3083480), (20, 2004262), (26, 1541740), (40, 1002131), (52, 770870), (65, 616696), (104, 385435), (130, 308348), (157, 255320), (260, 154174), (314, 127660), (491, 81640), (520, 77087), (628, 63830), (785, 51064), (982, 40820), (1256, 31915), (1570, 25532), (1964, 20410), (2041, 19640), (2455, 16328), (3140, 12766), (3928, 10205), (4082, 9820), (4910, 8164), (6280, 6383)]