28129690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 29205350

約数列:

[1, 2, 5, 10, 19, 23, 38, 41, 46, 82, 95, 115, 157, 190, 205, 230, 314, 410, 437, 779, 785, 874, 943, 1558, 1570, 1886, 2185, 2983, 3611, 3895, 4370, 4715, 5966, 6437, 7222, 7790, 9430, 12874, 14915, 17917, 18055, 29830, 32185, 35834, 36110, 64370, 68609, 89585, 122303, 137218, 148051, 179170, 244606, 296102, 343045, 611515, 686090, 740255, 1223030, 1480510, 2812969, 5625938, 14064845, 28129690]

約数ペア:

[(1, 28129690), (2, 14064845), (5, 5625938), (10, 2812969), (19, 1480510), (23, 1223030), (38, 740255), (41, 686090), (46, 611515), (82, 343045), (95, 296102), (115, 244606), (157, 179170), (190, 148051), (205, 137218), (230, 122303), (314, 89585), (410, 68609), (437, 64370), (779, 36110), (785, 35834), (874, 32185), (943, 29830), (1558, 18055), (1570, 17917), (1886, 14915), (2185, 12874), (2983, 9430), (3611, 7790), (3895, 7222), (4370, 6437), (4715, 5966)]