80381620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 195592320

約数和(自身を除く): 115210700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 43, 44, 55, 58, 86, 110, 116, 145, 172, 215, 220, 290, 293, 319, 430, 473, 580, 586, 638, 860, 946, 1172, 1247, 1276, 1465, 1595, 1892, 2365, 2494, 2930, 3190, 3223, 4730, 4988, 5860, 6235, 6380, 6446, 8497, 9460, 12470, 12599, 12892, 13717, 16115, 16994, 24940, 25198, 27434, 32230, 33988, 42485, 50396, 54868, 62995, 64460, 68585, 84970, 93467, 125990, 137170, 138589, 169940, 186934, 251980, 274340, 277178, 365371, 373868, 467335, 554356, 692945, 730742, 934670, 1385890, 1461484, 1826855, 1869340, 2771780, 3653710, 4019081, 7307420, 8038162, 16076324, 20095405, 40190810, 80381620]

約数ペア:

[(1, 80381620), (2, 40190810), (4, 20095405), (5, 16076324), (10, 8038162), (11, 7307420), (20, 4019081), (22, 3653710), (29, 2771780), (43, 1869340), (44, 1826855), (55, 1461484), (58, 1385890), (86, 934670), (110, 730742), (116, 692945), (145, 554356), (172, 467335), (215, 373868), (220, 365371), (290, 277178), (293, 274340), (319, 251980), (430, 186934), (473, 169940), (580, 138589), (586, 137170), (638, 125990), (860, 93467), (946, 84970), (1172, 68585), (1247, 64460), (1276, 62995), (1465, 54868), (1595, 50396), (1892, 42485), (2365, 33988), (2494, 32230), (2930, 27434), (3190, 25198), (3223, 24940), (4730, 16994), (4988, 16115), (5860, 13717), (6235, 12892), (6380, 12599), (6446, 12470), (8497, 9460)]