127187440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 305828640

約数和(自身を除く): 178641200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 67, 80, 122, 134, 244, 268, 305, 335, 389, 488, 536, 610, 670, 778, 976, 1072, 1220, 1340, 1556, 1945, 2440, 2680, 3112, 3890, 4087, 4880, 5360, 6224, 7780, 8174, 15560, 16348, 20435, 23729, 26063, 31120, 32696, 40870, 47458, 52126, 65392, 81740, 94916, 104252, 118645, 130315, 163480, 189832, 208504, 237290, 260630, 326960, 379664, 417008, 474580, 521260, 949160, 1042520, 1589843, 1898320, 2085040, 3179686, 6359372, 7949215, 12718744, 15898430, 25437488, 31796860, 63593720, 127187440]

約数ペア:

[(1, 127187440), (2, 63593720), (4, 31796860), (5, 25437488), (8, 15898430), (10, 12718744), (16, 7949215), (20, 6359372), (40, 3179686), (61, 2085040), (67, 1898320), (80, 1589843), (122, 1042520), (134, 949160), (244, 521260), (268, 474580), (305, 417008), (335, 379664), (389, 326960), (488, 260630), (536, 237290), (610, 208504), (670, 189832), (778, 163480), (976, 130315), (1072, 118645), (1220, 104252), (1340, 94916), (1556, 81740), (1945, 65392), (2440, 52126), (2680, 47458), (3112, 40870), (3890, 32696), (4087, 31120), (4880, 26063), (5360, 23729), (6224, 20435), (7780, 16348), (8174, 15560)]