256992100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3299}}^1$

素因数の和:3373

約数の個数: 72

約数和(自身を含む): 601524000

約数和(自身を除く): 344531900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 779, 820, 950, 1025, 1558, 1900, 2050, 3116, 3299, 3895, 4100, 6598, 7790, 13196, 15580, 16495, 19475, 32990, 38950, 62681, 65980, 77900, 82475, 125362, 135259, 164950, 250724, 270518, 313405, 329900, 541036, 626810, 676295, 1253620, 1352590, 1567025, 2569921, 2705180, 3134050, 3381475, 5139842, 6268100, 6762950, 10279684, 12849605, 13525900, 25699210, 51398420, 64248025, 128496050, 256992100]

約数ペア:

[(1, 256992100), (2, 128496050), (4, 64248025), (5, 51398420), (10, 25699210), (19, 13525900), (20, 12849605), (25, 10279684), (38, 6762950), (41, 6268100), (50, 5139842), (76, 3381475), (82, 3134050), (95, 2705180), (100, 2569921), (164, 1567025), (190, 1352590), (205, 1253620), (380, 676295), (410, 626810), (475, 541036), (779, 329900), (820, 313405), (950, 270518), (1025, 250724), (1558, 164950), (1900, 135259), (2050, 125362), (3116, 82475), (3299, 77900), (3895, 65980), (4100, 62681), (6598, 38950), (7790, 32990), (13196, 19475), (15580, 16495)]