128555140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1625

約数の個数: 96

約数和(自身を含む): 335462400

約数和(自身を除く): 206907260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 380, 434, 532, 589, 620, 665, 868, 1085, 1178, 1330, 1559, 2170, 2356, 2660, 2945, 3118, 4123, 4340, 5890, 6236, 7795, 8246, 10913, 11780, 15590, 16492, 20615, 21826, 29621, 31180, 41230, 43652, 48329, 54565, 59242, 82460, 96658, 109130, 118484, 148105, 193316, 207347, 218260, 241645, 296210, 338303, 414694, 483290, 592420, 676606, 829388, 918251, 966580, 1036735, 1353212, 1691515, 1836502, 2073470, 3383030, 3673004, 4146940, 4591255, 6427757, 6766060, 9182510, 12855514, 18365020, 25711028, 32138785, 64277570, 128555140]

約数ペア:

[(1, 128555140), (2, 64277570), (4, 32138785), (5, 25711028), (7, 18365020), (10, 12855514), (14, 9182510), (19, 6766060), (20, 6427757), (28, 4591255), (31, 4146940), (35, 3673004), (38, 3383030), (62, 2073470), (70, 1836502), (76, 1691515), (95, 1353212), (124, 1036735), (133, 966580), (140, 918251), (155, 829388), (190, 676606), (217, 592420), (266, 483290), (310, 414694), (380, 338303), (434, 296210), (532, 241645), (589, 218260), (620, 207347), (665, 193316), (868, 148105), (1085, 118484), (1178, 109130), (1330, 96658), (1559, 82460), (2170, 59242), (2356, 54565), (2660, 48329), (2945, 43652), (3118, 41230), (4123, 31180), (4340, 29621), (5890, 21826), (6236, 20615), (7795, 16492), (8246, 15590), (10913, 11780)]