1918781625

素因数分解:

$3^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 3258777600

約数和(自身を除く): 1339995975

約数列:

[1, 3, 5, 15, 25, 75, 79, 125, 237, 239, 271, 375, 395, 717, 813, 1185, 1195, 1355, 1975, 3585, 4065, 5925, 5975, 6775, 9875, 17925, 18881, 20325, 21409, 29625, 29875, 33875, 56643, 64227, 64769, 89625, 94405, 101625, 107045, 194307, 283215, 321135, 323845, 472025, 535225, 971535, 1416075, 1605675, 1619225, 2360125, 2676125, 4857675, 5116751, 7080375, 8028375, 8096125, 15350253, 24288375, 25583755, 76751265, 127918775, 383756325, 639593875, 1918781625]

約数ペア:

[(1, 1918781625), (3, 639593875), (5, 383756325), (15, 127918775), (25, 76751265), (75, 25583755), (79, 24288375), (125, 15350253), (237, 8096125), (239, 8028375), (271, 7080375), (375, 5116751), (395, 4857675), (717, 2676125), (813, 2360125), (1185, 1619225), (1195, 1605675), (1355, 1416075), (1975, 971535), (3585, 535225), (4065, 472025), (5925, 323845), (5975, 321135), (6775, 283215), (9875, 194307), (17925, 107045), (18881, 101625), (20325, 94405), (21409, 89625), (29625, 64769), (29875, 64227), (33875, 56643)]