12985840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23189}}^1$

素因数の和:23209

約数の個数: 40

約数和(自身を含む): 34506720

約数和(自身を除く): 21520880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 23189, 46378, 92756, 115945, 162323, 185512, 231890, 324646, 371024, 463780, 649292, 811615, 927560, 1298584, 1623230, 1855120, 2597168, 3246460, 6492920, 12985840]

約数ペア:

[(1, 12985840), (2, 6492920), (4, 3246460), (5, 2597168), (7, 1855120), (8, 1623230), (10, 1298584), (14, 927560), (16, 811615), (20, 649292), (28, 463780), (35, 371024), (40, 324646), (56, 231890), (70, 185512), (80, 162323), (112, 115945), (140, 92756), (280, 46378), (560, 23189)]