78659900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1731

約数の個数: 72

約数和(自身を含む): 190654464

約数和(自身を除く): 111994564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1663, 1892, 2150, 2365, 3326, 4300, 4730, 6652, 8315, 9460, 11825, 16630, 18293, 23650, 33260, 36586, 41575, 47300, 71509, 73172, 83150, 91465, 143018, 166300, 182930, 286036, 357545, 365860, 457325, 715090, 786599, 914650, 1430180, 1573198, 1787725, 1829300, 3146396, 3575450, 3932995, 7150900, 7865990, 15731980, 19664975, 39329950, 78659900]

約数ペア:

[(1, 78659900), (2, 39329950), (4, 19664975), (5, 15731980), (10, 7865990), (11, 7150900), (20, 3932995), (22, 3575450), (25, 3146396), (43, 1829300), (44, 1787725), (50, 1573198), (55, 1430180), (86, 914650), (100, 786599), (110, 715090), (172, 457325), (215, 365860), (220, 357545), (275, 286036), (430, 182930), (473, 166300), (550, 143018), (860, 91465), (946, 83150), (1075, 73172), (1100, 71509), (1663, 47300), (1892, 41575), (2150, 36586), (2365, 33260), (3326, 23650), (4300, 18293), (4730, 16630), (6652, 11825), (8315, 9460)]