208080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^2$

素因数の和:53

約数の個数: 90

約数和(自身を含む): 742326

約数和(自身を除く): 534246

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 289, 306, 340, 360, 408, 510, 578, 612, 680, 720, 765, 816, 867, 1020, 1156, 1224, 1360, 1445, 1530, 1734, 2040, 2312, 2448, 2601, 2890, 3060, 3468, 4080, 4335, 4624, 5202, 5780, 6120, 6936, 8670, 10404, 11560, 12240, 13005, 13872, 17340, 20808, 23120, 26010, 34680, 41616, 52020, 69360, 104040, 208080]

約数ペア:

[(1, 208080), (2, 104040), (3, 69360), (4, 52020), (5, 41616), (6, 34680), (8, 26010), (9, 23120), (10, 20808), (12, 17340), (15, 13872), (16, 13005), (17, 12240), (18, 11560), (20, 10404), (24, 8670), (30, 6936), (34, 6120), (36, 5780), (40, 5202), (45, 4624), (48, 4335), (51, 4080), (60, 3468), (68, 3060), (72, 2890), (80, 2601), (85, 2448), (90, 2312), (102, 2040), (120, 1734), (136, 1530), (144, 1445), (153, 1360), (170, 1224), (180, 1156), (204, 1020), (240, 867), (255, 816), (272, 765), (289, 720), (306, 680), (340, 612), (360, 578), (408, 510)]