80214440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 185826960

約数和(自身を除く): 105612520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 157, 212, 241, 265, 314, 424, 482, 530, 628, 785, 964, 1060, 1205, 1256, 1570, 1928, 2120, 2410, 3140, 4820, 6280, 8321, 9640, 12773, 16642, 25546, 33284, 37837, 41605, 51092, 63865, 66568, 75674, 83210, 102184, 127730, 151348, 166420, 189185, 255460, 302696, 332840, 378370, 510920, 756740, 1513480, 2005361, 4010722, 8021444, 10026805, 16042888, 20053610, 40107220, 80214440]

約数ペア:

[(1, 80214440), (2, 40107220), (4, 20053610), (5, 16042888), (8, 10026805), (10, 8021444), (20, 4010722), (40, 2005361), (53, 1513480), (106, 756740), (157, 510920), (212, 378370), (241, 332840), (265, 302696), (314, 255460), (424, 189185), (482, 166420), (530, 151348), (628, 127730), (785, 102184), (964, 83210), (1060, 75674), (1205, 66568), (1256, 63865), (1570, 51092), (1928, 41605), (2120, 37837), (2410, 33284), (3140, 25546), (4820, 16642), (6280, 12773), (8321, 9640)]