20005949750

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{5741}}^1$

素因数の和:6074

約数の個数: 64

約数和(自身を含む): 38309521536

約数和(自身を除く): 18303571786

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 263, 265, 526, 530, 1315, 1325, 2630, 2650, 5741, 6575, 6625, 11482, 13150, 13250, 13939, 27878, 28705, 32875, 57410, 65750, 69695, 139390, 143525, 287050, 304273, 348475, 608546, 696950, 717625, 1435250, 1509883, 1521365, 1742375, 3019766, 3042730, 3484750, 7549415, 7606825, 15098830, 15213650, 37747075, 38034125, 75494150, 76068250, 80023799, 160047598, 188735375, 377470750, 400118995, 800237990, 2000594975, 4001189950, 10002974875, 20005949750]

約数ペア:

[(1, 20005949750), (2, 10002974875), (5, 4001189950), (10, 2000594975), (25, 800237990), (50, 400118995), (53, 377470750), (106, 188735375), (125, 160047598), (250, 80023799), (263, 76068250), (265, 75494150), (526, 38034125), (530, 37747075), (1315, 15213650), (1325, 15098830), (2630, 7606825), (2650, 7549415), (5741, 3484750), (6575, 3042730), (6625, 3019766), (11482, 1742375), (13150, 1521365), (13250, 1509883), (13939, 1435250), (27878, 717625), (28705, 696950), (32875, 608546), (57410, 348475), (65750, 304273), (69695, 287050), (139390, 143525)]