218729900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 108

約数和(自身を含む): 513920232

約数和(自身を除く): 295190332

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 73, 76, 83, 95, 100, 146, 166, 190, 292, 332, 361, 365, 380, 415, 475, 722, 730, 830, 950, 1387, 1444, 1460, 1577, 1660, 1805, 1825, 1900, 2075, 2774, 3154, 3610, 3650, 4150, 5548, 6059, 6308, 6935, 7220, 7300, 7885, 8300, 9025, 12118, 13870, 15770, 18050, 24236, 26353, 27740, 29963, 30295, 31540, 34675, 36100, 39425, 52706, 59926, 60590, 69350, 78850, 105412, 115121, 119852, 121180, 131765, 138700, 149815, 151475, 157700, 230242, 263530, 299630, 302950, 460484, 527060, 575605, 599260, 605900, 658825, 749075, 1151210, 1317650, 1498150, 2187299, 2302420, 2635300, 2878025, 2996300, 4374598, 5756050, 8749196, 10936495, 11512100, 21872990, 43745980, 54682475, 109364950, 218729900]

約数ペア:

[(1, 218729900), (2, 109364950), (4, 54682475), (5, 43745980), (10, 21872990), (19, 11512100), (20, 10936495), (25, 8749196), (38, 5756050), (50, 4374598), (73, 2996300), (76, 2878025), (83, 2635300), (95, 2302420), (100, 2187299), (146, 1498150), (166, 1317650), (190, 1151210), (292, 749075), (332, 658825), (361, 605900), (365, 599260), (380, 575605), (415, 527060), (475, 460484), (722, 302950), (730, 299630), (830, 263530), (950, 230242), (1387, 157700), (1444, 151475), (1460, 149815), (1577, 138700), (1660, 131765), (1805, 121180), (1825, 119852), (1900, 115121), (2075, 105412), (2774, 78850), (3154, 69350), (3610, 60590), (3650, 59926), (4150, 52706), (5548, 39425), (6059, 36100), (6308, 34675), (6935, 31540), (7220, 30295), (7300, 29963), (7885, 27740), (8300, 26353), (9025, 24236), (12118, 18050), (13870, 15770)]