256917690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22129}}^1$

素因数の和:22188

約数の個数: 64

約数和(自身を含む): 701078400

約数和(自身を除く): 444160710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 86, 90, 129, 135, 215, 258, 270, 387, 430, 645, 774, 1161, 1290, 1935, 2322, 3870, 5805, 11610, 22129, 44258, 66387, 110645, 132774, 199161, 221290, 331935, 398322, 597483, 663870, 951547, 995805, 1194966, 1903094, 1991610, 2854641, 2987415, 4757735, 5709282, 5974830, 8563923, 9515470, 14273205, 17127846, 25691769, 28546410, 42819615, 51383538, 85639230, 128458845, 256917690]

約数ペア:

[(1, 256917690), (2, 128458845), (3, 85639230), (5, 51383538), (6, 42819615), (9, 28546410), (10, 25691769), (15, 17127846), (18, 14273205), (27, 9515470), (30, 8563923), (43, 5974830), (45, 5709282), (54, 4757735), (86, 2987415), (90, 2854641), (129, 1991610), (135, 1903094), (215, 1194966), (258, 995805), (270, 951547), (387, 663870), (430, 597483), (645, 398322), (774, 331935), (1161, 221290), (1290, 199161), (1935, 132774), (2322, 110645), (3870, 66387), (5805, 44258), (11610, 22129)]