1280957200

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5437}}^1$

素因数の和:5505

約数の個数: 120

約数和(自身を含む): 3344587520

約数和(自身を除く): 2063630320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 38, 40, 50, 62, 76, 80, 95, 100, 124, 152, 155, 190, 200, 248, 304, 310, 380, 400, 475, 496, 589, 620, 760, 775, 950, 1178, 1240, 1520, 1550, 1900, 2356, 2480, 2945, 3100, 3800, 4712, 5437, 5890, 6200, 7600, 9424, 10874, 11780, 12400, 14725, 21748, 23560, 27185, 29450, 43496, 47120, 54370, 58900, 86992, 103303, 108740, 117800, 135925, 168547, 206606, 217480, 235600, 271850, 337094, 413212, 434960, 516515, 543700, 674188, 826424, 842735, 1033030, 1087400, 1348376, 1652848, 1685470, 2066060, 2174800, 2582575, 2696752, 3202393, 3370940, 4132120, 4213675, 5165150, 6404786, 6741880, 8264240, 8427350, 10330300, 12809572, 13483760, 16011965, 16854700, 20660600, 25619144, 32023930, 33709400, 41321200, 51238288, 64047860, 67418800, 80059825, 128095720, 160119650, 256191440, 320239300, 640478600, 1280957200]

約数ペア:

[(1, 1280957200), (2, 640478600), (4, 320239300), (5, 256191440), (8, 160119650), (10, 128095720), (16, 80059825), (19, 67418800), (20, 64047860), (25, 51238288), (31, 41321200), (38, 33709400), (40, 32023930), (50, 25619144), (62, 20660600), (76, 16854700), (80, 16011965), (95, 13483760), (100, 12809572), (124, 10330300), (152, 8427350), (155, 8264240), (190, 6741880), (200, 6404786), (248, 5165150), (304, 4213675), (310, 4132120), (380, 3370940), (400, 3202393), (475, 2696752), (496, 2582575), (589, 2174800), (620, 2066060), (760, 1685470), (775, 1652848), (950, 1348376), (1178, 1087400), (1240, 1033030), (1520, 842735), (1550, 826424), (1900, 674188), (2356, 543700), (2480, 516515), (2945, 434960), (3100, 413212), (3800, 337094), (4712, 271850), (5437, 235600), (5890, 217480), (6200, 206606), (7600, 168547), (9424, 135925), (10874, 117800), (11780, 108740), (12400, 103303), (14725, 86992), (21748, 58900), (23560, 54370), (27185, 47120), (29450, 43496)]