218551490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 445098240

約数和(自身を除く): 226546750

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 71, 85, 95, 142, 170, 190, 323, 355, 646, 710, 953, 1207, 1349, 1615, 1906, 2414, 2698, 3230, 4765, 6035, 6745, 9530, 12070, 13490, 16201, 18107, 22933, 32402, 36214, 45866, 67663, 81005, 90535, 114665, 135326, 162010, 181070, 229330, 307819, 338315, 615638, 676630, 1150271, 1285597, 1539095, 2300542, 2571194, 3078190, 5751355, 6427985, 11502710, 12855970, 21855149, 43710298, 109275745, 218551490]

約数ペア:

[(1, 218551490), (2, 109275745), (5, 43710298), (10, 21855149), (17, 12855970), (19, 11502710), (34, 6427985), (38, 5751355), (71, 3078190), (85, 2571194), (95, 2300542), (142, 1539095), (170, 1285597), (190, 1150271), (323, 676630), (355, 615638), (646, 338315), (710, 307819), (953, 229330), (1207, 181070), (1349, 162010), (1615, 135326), (1906, 114665), (2414, 90535), (2698, 81005), (3230, 67663), (4765, 45866), (6035, 36214), (6745, 32402), (9530, 22933), (12070, 18107), (13490, 16201)]