84280040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2657}}^1$

素因数の和:2742

約数の個数: 64

約数和(自身を含む): 207642960

約数和(自身を除く): 123362920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 2657, 3172, 3965, 5314, 6344, 7930, 10628, 13285, 15860, 21256, 26570, 31720, 34541, 53140, 69082, 106280, 138164, 162077, 172705, 276328, 324154, 345410, 648308, 690820, 810385, 1296616, 1381640, 1620770, 2107001, 3241540, 4214002, 6483080, 8428004, 10535005, 16856008, 21070010, 42140020, 84280040]

約数ペア:

[(1, 84280040), (2, 42140020), (4, 21070010), (5, 16856008), (8, 10535005), (10, 8428004), (13, 6483080), (20, 4214002), (26, 3241540), (40, 2107001), (52, 1620770), (61, 1381640), (65, 1296616), (104, 810385), (122, 690820), (130, 648308), (244, 345410), (260, 324154), (305, 276328), (488, 172705), (520, 162077), (610, 138164), (793, 106280), (1220, 69082), (1586, 53140), (2440, 34541), (2657, 31720), (3172, 26570), (3965, 21256), (5314, 15860), (6344, 13285), (7930, 10628)]