199045640

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{8039}}^1$

素因数の和:8669

約数の個数: 32

約数和(自身を含む): 448632000

約数和(自身を除く): 249586360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 3095, 4952, 6190, 8039, 12380, 16078, 24760, 32156, 40195, 64312, 80390, 160780, 321560, 4976141, 9952282, 19904564, 24880705, 39809128, 49761410, 99522820, 199045640]

約数ペア:

[(1, 199045640), (2, 99522820), (4, 49761410), (5, 39809128), (8, 24880705), (10, 19904564), (20, 9952282), (40, 4976141), (619, 321560), (1238, 160780), (2476, 80390), (3095, 64312), (4952, 40195), (6190, 32156), (8039, 24760), (12380, 16078)]