81489687556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{126547}}^1$

素因数の和:126836

約数の個数: 48

約数和(自身を含む): 154844132800

約数和(自身を除く): 73354445244

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 229, 458, 703, 916, 1406, 2812, 4351, 8473, 8702, 16946, 17404, 33892, 126547, 160987, 253094, 321974, 506188, 643948, 2404393, 4682239, 4808786, 9364478, 9617572, 18728956, 28979263, 57958526, 88962541, 115917052, 177925082, 355850164, 550605997, 1072232731, 1101211994, 2144465462, 2202423988, 4288930924, 20372421889, 40744843778, 81489687556]

約数ペア:

[(1, 81489687556), (2, 40744843778), (4, 20372421889), (19, 4288930924), (37, 2202423988), (38, 2144465462), (74, 1101211994), (76, 1072232731), (148, 550605997), (229, 355850164), (458, 177925082), (703, 115917052), (916, 88962541), (1406, 57958526), (2812, 28979263), (4351, 18728956), (8473, 9617572), (8702, 9364478), (16946, 4808786), (17404, 4682239), (33892, 2404393), (126547, 643948), (160987, 506188), (253094, 321974)]