21672370400

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{2111}}^1$

素因数の和:2485

約数の個数: 144

約数和(自身を含む): 54397018368

約数和(自身を除く): 32724647968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 160, 164, 200, 205, 313, 328, 400, 410, 626, 656, 800, 820, 1025, 1252, 1312, 1565, 1640, 2050, 2111, 2504, 3130, 3280, 4100, 4222, 5008, 6260, 6560, 7825, 8200, 8444, 10016, 10555, 12520, 12833, 15650, 16400, 16888, 21110, 25040, 25666, 31300, 32800, 33776, 42220, 50080, 51332, 52775, 62600, 64165, 67552, 84440, 86551, 102664, 105550, 125200, 128330, 168880, 173102, 205328, 211100, 250400, 256660, 320825, 337760, 346204, 410656, 422200, 432755, 513320, 641650, 660743, 692408, 844400, 865510, 1026640, 1283300, 1321486, 1384816, 1688800, 1731020, 2053280, 2163775, 2566600, 2642972, 2769632, 3303715, 3462040, 4327550, 5133200, 5285944, 6607430, 6924080, 8655100, 10266400, 10571888, 13214860, 13848160, 16518575, 17310200, 21143776, 26429720, 27090463, 33037150, 34620400, 52859440, 54180926, 66074300, 69240800, 105718880, 108361852, 132148600, 135452315, 216723704, 264297200, 270904630, 433447408, 528594400, 541809260, 677261575, 866894816, 1083618520, 1354523150, 2167237040, 2709046300, 4334474080, 5418092600, 10836185200, 21672370400]

約数ペア:

[(1, 21672370400), (2, 10836185200), (4, 5418092600), (5, 4334474080), (8, 2709046300), (10, 2167237040), (16, 1354523150), (20, 1083618520), (25, 866894816), (32, 677261575), (40, 541809260), (41, 528594400), (50, 433447408), (80, 270904630), (82, 264297200), (100, 216723704), (160, 135452315), (164, 132148600), (200, 108361852), (205, 105718880), (313, 69240800), (328, 66074300), (400, 54180926), (410, 52859440), (626, 34620400), (656, 33037150), (800, 27090463), (820, 26429720), (1025, 21143776), (1252, 17310200), (1312, 16518575), (1565, 13848160), (1640, 13214860), (2050, 10571888), (2111, 10266400), (2504, 8655100), (3130, 6924080), (3280, 6607430), (4100, 5285944), (4222, 5133200), (5008, 4327550), (6260, 3462040), (6560, 3303715), (7825, 2769632), (8200, 2642972), (8444, 2566600), (10016, 2163775), (10555, 2053280), (12520, 1731020), (12833, 1688800), (15650, 1384816), (16400, 1321486), (16888, 1283300), (21110, 1026640), (25040, 865510), (25666, 844400), (31300, 692408), (32800, 660743), (33776, 641650), (42220, 513320), (50080, 432755), (51332, 422200), (52775, 410656), (62600, 346204), (64165, 337760), (67552, 320825), (84440, 256660), (86551, 250400), (102664, 211100), (105550, 205328), (125200, 173102), (128330, 168880)]