207821510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 416223360

約数和(自身を除く): 208401850

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 73, 122, 130, 146, 305, 359, 365, 610, 718, 730, 793, 949, 1586, 1795, 1898, 3590, 3965, 4453, 4667, 4745, 7930, 8906, 9334, 9490, 21899, 22265, 23335, 26207, 43798, 44530, 46670, 52414, 57889, 109495, 115778, 131035, 218990, 262070, 284687, 289445, 340691, 569374, 578890, 681382, 1423435, 1598627, 1703455, 2846870, 3197254, 3406910, 7993135, 15986270, 20782151, 41564302, 103910755, 207821510]

約数ペア:

[(1, 207821510), (2, 103910755), (5, 41564302), (10, 20782151), (13, 15986270), (26, 7993135), (61, 3406910), (65, 3197254), (73, 2846870), (122, 1703455), (130, 1598627), (146, 1423435), (305, 681382), (359, 578890), (365, 569374), (610, 340691), (718, 289445), (730, 284687), (793, 262070), (949, 218990), (1586, 131035), (1795, 115778), (1898, 109495), (3590, 57889), (3965, 52414), (4453, 46670), (4667, 44530), (4745, 43798), (7930, 26207), (8906, 23335), (9334, 22265), (9490, 21899)]