178861020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229309}}^1$

素因数の和:229334

約数の個数: 48

約数和(自身を含む): 539337120

約数和(自身を除く): 360476100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 229309, 458618, 687927, 917236, 1146545, 1375854, 2293090, 2751708, 2981017, 3439635, 4586180, 5962034, 6879270, 8943051, 11924068, 13758540, 14905085, 17886102, 29810170, 35772204, 44715255, 59620340, 89430510, 178861020]

約数ペア:

[(1, 178861020), (2, 89430510), (3, 59620340), (4, 44715255), (5, 35772204), (6, 29810170), (10, 17886102), (12, 14905085), (13, 13758540), (15, 11924068), (20, 8943051), (26, 6879270), (30, 5962034), (39, 4586180), (52, 3439635), (60, 2981017), (65, 2751708), (78, 2293090), (130, 1375854), (156, 1146545), (195, 917236), (260, 687927), (390, 458618), (780, 229309)]