78406960

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16067}}^1$

素因数の和:16141

約数の個数: 40

約数和(自身を含む): 185296176

約数和(自身を除く): 106889216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 16067, 32134, 64268, 80335, 128536, 160670, 257072, 321340, 642680, 980087, 1285360, 1960174, 3920348, 4900435, 7840696, 9800870, 15681392, 19601740, 39203480, 78406960]

約数ペア:

[(1, 78406960), (2, 39203480), (4, 19601740), (5, 15681392), (8, 9800870), (10, 7840696), (16, 4900435), (20, 3920348), (40, 1960174), (61, 1285360), (80, 980087), (122, 642680), (244, 321340), (305, 257072), (488, 160670), (610, 128536), (976, 80335), (1220, 64268), (2440, 32134), (4880, 16067)]