205896255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 362672640

約数和(自身を除く): 156776385

約数列:

[1, 3, 5, 15, 19, 43, 53, 57, 95, 129, 159, 215, 265, 285, 317, 645, 795, 817, 951, 1007, 1585, 2279, 2451, 3021, 4085, 4755, 5035, 6023, 6837, 11395, 12255, 13631, 15105, 16801, 18069, 30115, 34185, 40893, 43301, 50403, 68155, 84005, 90345, 129903, 204465, 216505, 252015, 258989, 319219, 649515, 722443, 776967, 957657, 1294945, 1596095, 2167329, 3612215, 3884835, 4788285, 10836645, 13726417, 41179251, 68632085, 205896255]

約数ペア:

[(1, 205896255), (3, 68632085), (5, 41179251), (15, 13726417), (19, 10836645), (43, 4788285), (53, 3884835), (57, 3612215), (95, 2167329), (129, 1596095), (159, 1294945), (215, 957657), (265, 776967), (285, 722443), (317, 649515), (645, 319219), (795, 258989), (817, 252015), (951, 216505), (1007, 204465), (1585, 129903), (2279, 90345), (2451, 84005), (3021, 68155), (4085, 50403), (4755, 43301), (5035, 40893), (6023, 34185), (6837, 30115), (11395, 18069), (12255, 16801), (13631, 15105)]