20454736900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{828127}}^1$

素因数の和:828173

約数の個数: 72

約数和(自身を含む): 50317057280

約数和(自身を除く): 29862320380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 950, 988, 1235, 1300, 1900, 2470, 4940, 6175, 12350, 24700, 828127, 1656254, 3312508, 4140635, 8281270, 10765651, 15734413, 16562540, 20703175, 21531302, 31468826, 41406350, 43062604, 53828255, 62937652, 78672065, 82812700, 107656510, 157344130, 204547369, 215313020, 269141275, 314688260, 393360325, 409094738, 538282550, 786720650, 818189476, 1022736845, 1076565100, 1573441300, 2045473690, 4090947380, 5113684225, 10227368450, 20454736900]

約数ペア:

[(1, 20454736900), (2, 10227368450), (4, 5113684225), (5, 4090947380), (10, 2045473690), (13, 1573441300), (19, 1076565100), (20, 1022736845), (25, 818189476), (26, 786720650), (38, 538282550), (50, 409094738), (52, 393360325), (65, 314688260), (76, 269141275), (95, 215313020), (100, 204547369), (130, 157344130), (190, 107656510), (247, 82812700), (260, 78672065), (325, 62937652), (380, 53828255), (475, 43062604), (494, 41406350), (650, 31468826), (950, 21531302), (988, 20703175), (1235, 16562540), (1300, 15734413), (1900, 10765651), (2470, 8281270), (4940, 4140635), (6175, 3312508), (12350, 1656254), (24700, 828127)]