80170480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 202424544

約数和(自身を除く): 122254064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 208, 260, 314, 491, 520, 628, 785, 982, 1040, 1256, 1570, 1964, 2041, 2455, 2512, 3140, 3928, 4082, 4910, 6280, 6383, 7856, 8164, 9820, 10205, 12560, 12766, 16328, 19640, 20410, 25532, 31915, 32656, 39280, 40820, 51064, 63830, 77087, 81640, 102128, 127660, 154174, 163280, 255320, 308348, 385435, 510640, 616696, 770870, 1002131, 1233392, 1541740, 2004262, 3083480, 4008524, 5010655, 6166960, 8017048, 10021310, 16034096, 20042620, 40085240, 80170480]

約数ペア:

[(1, 80170480), (2, 40085240), (4, 20042620), (5, 16034096), (8, 10021310), (10, 8017048), (13, 6166960), (16, 5010655), (20, 4008524), (26, 3083480), (40, 2004262), (52, 1541740), (65, 1233392), (80, 1002131), (104, 770870), (130, 616696), (157, 510640), (208, 385435), (260, 308348), (314, 255320), (491, 163280), (520, 154174), (628, 127660), (785, 102128), (982, 81640), (1040, 77087), (1256, 63830), (1570, 51064), (1964, 40820), (2041, 39280), (2455, 32656), (2512, 31915), (3140, 25532), (3928, 20410), (4082, 19640), (4910, 16328), (6280, 12766), (6383, 12560), (7856, 10205), (8164, 9820)]