128564710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 258660864

約数和(自身を除く): 130096154

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 131, 170, 230, 251, 262, 391, 502, 655, 782, 1255, 1310, 1955, 2227, 2510, 3013, 3910, 4267, 4454, 5773, 6026, 8534, 11135, 11546, 15065, 21335, 22270, 28865, 30130, 32881, 42670, 51221, 57730, 65762, 98141, 102442, 164405, 196282, 256105, 328810, 490705, 512210, 558977, 756263, 981410, 1117954, 1512526, 2794885, 3781315, 5589770, 7562630, 12856471, 25712942, 64282355, 128564710]

約数ペア:

[(1, 128564710), (2, 64282355), (5, 25712942), (10, 12856471), (17, 7562630), (23, 5589770), (34, 3781315), (46, 2794885), (85, 1512526), (115, 1117954), (131, 981410), (170, 756263), (230, 558977), (251, 512210), (262, 490705), (391, 328810), (502, 256105), (655, 196282), (782, 164405), (1255, 102442), (1310, 98141), (1955, 65762), (2227, 57730), (2510, 51221), (3013, 42670), (3910, 32881), (4267, 30130), (4454, 28865), (5773, 22270), (6026, 21335), (8534, 15065), (11135, 11546)]