398212490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 791683200

約数和(自身を除く): 393470710

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 131, 134, 262, 335, 349, 655, 670, 698, 871, 1310, 1703, 1742, 1745, 3406, 3490, 4355, 4537, 8515, 8710, 8777, 9074, 17030, 17554, 22685, 23383, 43885, 45370, 45719, 46766, 87770, 91438, 114101, 116915, 228202, 228595, 233830, 303979, 457190, 570505, 594347, 607958, 1141010, 1188694, 1519895, 2971735, 3039790, 3063173, 5943470, 6126346, 15315865, 30631730, 39821249, 79642498, 199106245, 398212490]

約数ペア:

[(1, 398212490), (2, 199106245), (5, 79642498), (10, 39821249), (13, 30631730), (26, 15315865), (65, 6126346), (67, 5943470), (130, 3063173), (131, 3039790), (134, 2971735), (262, 1519895), (335, 1188694), (349, 1141010), (655, 607958), (670, 594347), (698, 570505), (871, 457190), (1310, 303979), (1703, 233830), (1742, 228595), (1745, 228202), (3406, 116915), (3490, 114101), (4355, 91438), (4537, 87770), (8515, 46766), (8710, 45719), (8777, 45370), (9074, 43885), (17030, 23383), (17554, 22685)]