19653225

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 34283520

約数和(自身を除く): 14630295

約数列:

[1, 3, 5, 15, 25, 31, 75, 79, 93, 107, 155, 237, 321, 395, 465, 535, 775, 1185, 1605, 1975, 2325, 2449, 2675, 3317, 5925, 7347, 8025, 8453, 9951, 12245, 16585, 25359, 36735, 42265, 49755, 61225, 82925, 126795, 183675, 211325, 248775, 262043, 633975, 786129, 1310215, 3930645, 6551075, 19653225]

約数ペア:

[(1, 19653225), (3, 6551075), (5, 3930645), (15, 1310215), (25, 786129), (31, 633975), (75, 262043), (79, 248775), (93, 211325), (107, 183675), (155, 126795), (237, 82925), (321, 61225), (395, 49755), (465, 42265), (535, 36735), (775, 25359), (1185, 16585), (1605, 12245), (1975, 9951), (2325, 8453), (2449, 8025), (2675, 7347), (3317, 5925)]