217990125

素因数分解:

$3^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{5237}}^1$

素因数の和:5295

約数の個数: 48

約数和(自身を含む): 403661232

約数和(自身を除く): 185671107

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 125, 185, 225, 333, 375, 555, 925, 1125, 1665, 2775, 4625, 5237, 8325, 13875, 15711, 26185, 41625, 47133, 78555, 130925, 193769, 235665, 392775, 581307, 654625, 968845, 1178325, 1743921, 1963875, 2906535, 4844225, 5891625, 8719605, 14532675, 24221125, 43598025, 72663375, 217990125]

約数ペア:

[(1, 217990125), (3, 72663375), (5, 43598025), (9, 24221125), (15, 14532675), (25, 8719605), (37, 5891625), (45, 4844225), (75, 2906535), (111, 1963875), (125, 1743921), (185, 1178325), (225, 968845), (333, 654625), (375, 581307), (555, 392775), (925, 235665), (1125, 193769), (1665, 130925), (2775, 78555), (4625, 47133), (5237, 41625), (8325, 26185), (13875, 15711)]