1900391320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{6449}}^1$

素因数の和:6652

約数の個数: 64

約数和(自身を含む): 4388580000

約数和(自身を除く): 2488188680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 139, 212, 265, 278, 424, 530, 556, 695, 1060, 1112, 1390, 2120, 2780, 5560, 6449, 7367, 12898, 14734, 25796, 29468, 32245, 36835, 51592, 58936, 64490, 73670, 128980, 147340, 257960, 294680, 341797, 683594, 896411, 1367188, 1708985, 1792822, 2734376, 3417970, 3585644, 4482055, 6835940, 7171288, 8964110, 13671880, 17928220, 35856440, 47509783, 95019566, 190039132, 237548915, 380078264, 475097830, 950195660, 1900391320]

約数ペア:

[(1, 1900391320), (2, 950195660), (4, 475097830), (5, 380078264), (8, 237548915), (10, 190039132), (20, 95019566), (40, 47509783), (53, 35856440), (106, 17928220), (139, 13671880), (212, 8964110), (265, 7171288), (278, 6835940), (424, 4482055), (530, 3585644), (556, 3417970), (695, 2734376), (1060, 1792822), (1112, 1708985), (1390, 1367188), (2120, 896411), (2780, 683594), (5560, 341797), (6449, 294680), (7367, 257960), (12898, 147340), (14734, 128980), (25796, 73670), (29468, 64490), (32245, 58936), (36835, 51592)]