78872690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 164112480

約数和(自身を除く): 85239790

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 89, 130, 170, 178, 221, 401, 442, 445, 802, 890, 1105, 1157, 1513, 2005, 2210, 2314, 3026, 4010, 5213, 5785, 6817, 7565, 10426, 11570, 13634, 15130, 19669, 26065, 34085, 35689, 39338, 52130, 68170, 71378, 88621, 98345, 177242, 178445, 196690, 356890, 443105, 463957, 606713, 886210, 927914, 1213426, 2319785, 3033565, 4639570, 6067130, 7887269, 15774538, 39436345, 78872690]

約数ペア:

[(1, 78872690), (2, 39436345), (5, 15774538), (10, 7887269), (13, 6067130), (17, 4639570), (26, 3033565), (34, 2319785), (65, 1213426), (85, 927914), (89, 886210), (130, 606713), (170, 463957), (178, 443105), (221, 356890), (401, 196690), (442, 178445), (445, 177242), (802, 98345), (890, 88621), (1105, 71378), (1157, 68170), (1513, 52130), (2005, 39338), (2210, 35689), (2314, 34085), (3026, 26065), (4010, 19669), (5213, 15130), (5785, 13634), (6817, 11570), (7565, 10426)]