12659985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 26732160

約数和(自身を除く): 14072175

約数列:

[1, 3, 5, 9, 13, 15, 17, 19, 39, 45, 51, 57, 65, 67, 85, 95, 117, 153, 171, 195, 201, 221, 247, 255, 285, 323, 335, 585, 603, 663, 741, 765, 855, 871, 969, 1005, 1105, 1139, 1235, 1273, 1615, 1989, 2223, 2613, 2907, 3015, 3315, 3417, 3705, 3819, 4199, 4355, 4845, 5695, 6365, 7839, 9945, 10251, 11115, 11457, 12597, 13065, 14535, 14807, 16549, 17085, 19095, 20995, 21641, 37791, 39195, 44421, 49647, 51255, 57285, 62985, 64923, 74035, 82745, 108205, 133263, 148941, 188955, 194769, 222105, 248235, 281333, 324615, 666315, 744705, 843999, 973845, 1406665, 2531997, 4219995, 12659985]

約数ペア:

[(1, 12659985), (3, 4219995), (5, 2531997), (9, 1406665), (13, 973845), (15, 843999), (17, 744705), (19, 666315), (39, 324615), (45, 281333), (51, 248235), (57, 222105), (65, 194769), (67, 188955), (85, 148941), (95, 133263), (117, 108205), (153, 82745), (171, 74035), (195, 64923), (201, 62985), (221, 57285), (247, 51255), (255, 49647), (285, 44421), (323, 39195), (335, 37791), (585, 21641), (603, 20995), (663, 19095), (741, 17085), (765, 16549), (855, 14807), (871, 14535), (969, 13065), (1005, 12597), (1105, 11457), (1139, 11115), (1235, 10251), (1273, 9945), (1615, 7839), (1989, 6365), (2223, 5695), (2613, 4845), (2907, 4355), (3015, 4199), (3315, 3819), (3417, 3705)]