63440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:87

約数の個数: 40

約数和(自身を含む): 161448

約数和(自身を除く): 98008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 3172, 3965, 4880, 6344, 7930, 12688, 15860, 31720, 63440]

約数ペア:

[(1, 63440), (2, 31720), (4, 15860), (5, 12688), (8, 7930), (10, 6344), (13, 4880), (16, 3965), (20, 3172), (26, 2440), (40, 1586), (52, 1220), (61, 1040), (65, 976), (80, 793), (104, 610), (122, 520), (130, 488), (208, 305), (244, 260)]