209898225

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1327}}^1$

素因数の和:1399

約数の個数: 72

約数和(自身を含む): 406739840

約数和(自身を除く): 196841615

約数列:

[1, 3, 5, 9, 15, 19, 25, 37, 45, 57, 75, 95, 111, 171, 185, 225, 285, 333, 475, 555, 703, 855, 925, 1327, 1425, 1665, 2109, 2775, 3515, 3981, 4275, 6327, 6635, 8325, 10545, 11943, 17575, 19905, 25213, 31635, 33175, 49099, 52725, 59715, 75639, 99525, 126065, 147297, 158175, 226917, 245495, 298575, 378195, 441891, 630325, 736485, 932881, 1134585, 1227475, 1890975, 2209455, 2798643, 3682425, 4664405, 5672925, 8395929, 11047275, 13993215, 23322025, 41979645, 69966075, 209898225]

約数ペア:

[(1, 209898225), (3, 69966075), (5, 41979645), (9, 23322025), (15, 13993215), (19, 11047275), (25, 8395929), (37, 5672925), (45, 4664405), (57, 3682425), (75, 2798643), (95, 2209455), (111, 1890975), (171, 1227475), (185, 1134585), (225, 932881), (285, 736485), (333, 630325), (475, 441891), (555, 378195), (703, 298575), (855, 245495), (925, 226917), (1327, 158175), (1425, 147297), (1665, 126065), (2109, 99525), (2775, 75639), (3515, 59715), (3981, 52725), (4275, 49099), (6327, 33175), (6635, 31635), (8325, 25213), (10545, 19905), (11943, 17575)]