198835240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3911}}^1$

素因数の和:3994

約数の個数: 64

約数和(自身を含む): 473195520

約数和(自身を除く): 274360280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1640, 2542, 3911, 5084, 6355, 7822, 10168, 12710, 15644, 19555, 25420, 31288, 39110, 50840, 78220, 121241, 156440, 160351, 242482, 320702, 484964, 606205, 641404, 801755, 969928, 1212410, 1282808, 1603510, 2424820, 3207020, 4849640, 4970881, 6414040, 9941762, 19883524, 24854405, 39767048, 49708810, 99417620, 198835240]

約数ペア:

[(1, 198835240), (2, 99417620), (4, 49708810), (5, 39767048), (8, 24854405), (10, 19883524), (20, 9941762), (31, 6414040), (40, 4970881), (41, 4849640), (62, 3207020), (82, 2424820), (124, 1603510), (155, 1282808), (164, 1212410), (205, 969928), (248, 801755), (310, 641404), (328, 606205), (410, 484964), (620, 320702), (820, 242482), (1240, 160351), (1271, 156440), (1640, 121241), (2542, 78220), (3911, 50840), (5084, 39110), (6355, 31288), (7822, 25420), (10168, 19555), (12710, 15644)]