77271740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{42457}}^1$

素因数の和:42486

約数の個数: 48

約数和(自身を含む): 199722432

約数和(自身を除く): 122450692

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 42457, 84914, 169828, 212285, 297199, 424570, 551941, 594398, 849140, 1103882, 1188796, 1485995, 2207764, 2759705, 2971990, 3863587, 5519410, 5943980, 7727174, 11038820, 15454348, 19317935, 38635870, 77271740]

約数ペア:

[(1, 77271740), (2, 38635870), (4, 19317935), (5, 15454348), (7, 11038820), (10, 7727174), (13, 5943980), (14, 5519410), (20, 3863587), (26, 2971990), (28, 2759705), (35, 2207764), (52, 1485995), (65, 1188796), (70, 1103882), (91, 849140), (130, 594398), (140, 551941), (182, 424570), (260, 297199), (364, 212285), (455, 169828), (910, 84914), (1820, 42457)]