90144520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 209193840

約数和(自身を除く): 119049320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 101, 106, 202, 212, 265, 404, 421, 424, 505, 530, 808, 842, 1010, 1060, 1684, 2020, 2105, 2120, 3368, 4040, 4210, 5353, 8420, 10706, 16840, 21412, 22313, 26765, 42521, 42824, 44626, 53530, 85042, 89252, 107060, 111565, 170084, 178504, 212605, 214120, 223130, 340168, 425210, 446260, 850420, 892520, 1700840, 2253613, 4507226, 9014452, 11268065, 18028904, 22536130, 45072260, 90144520]

約数ペア:

[(1, 90144520), (2, 45072260), (4, 22536130), (5, 18028904), (8, 11268065), (10, 9014452), (20, 4507226), (40, 2253613), (53, 1700840), (101, 892520), (106, 850420), (202, 446260), (212, 425210), (265, 340168), (404, 223130), (421, 214120), (424, 212605), (505, 178504), (530, 170084), (808, 111565), (842, 107060), (1010, 89252), (1060, 85042), (1684, 53530), (2020, 44626), (2105, 42824), (2120, 42521), (3368, 26765), (4040, 22313), (4210, 21412), (5353, 16840), (8420, 10706)]