2001029080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61231}}^1$

素因数の和:61304

約数の個数: 64

約数和(自身を含む): 4849574400

約数和(自身を除く): 2848545320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 3268, 4085, 6536, 8170, 16340, 32680, 61231, 122462, 244924, 306155, 489848, 612310, 1163389, 1224620, 2326778, 2449240, 2632933, 4653556, 5265866, 5816945, 9307112, 10531732, 11633890, 13164665, 21063464, 23267780, 26329330, 46535560, 50025727, 52658660, 100051454, 105317320, 200102908, 250128635, 400205816, 500257270, 1000514540, 2001029080]

約数ペア:

[(1, 2001029080), (2, 1000514540), (4, 500257270), (5, 400205816), (8, 250128635), (10, 200102908), (19, 105317320), (20, 100051454), (38, 52658660), (40, 50025727), (43, 46535560), (76, 26329330), (86, 23267780), (95, 21063464), (152, 13164665), (172, 11633890), (190, 10531732), (215, 9307112), (344, 5816945), (380, 5265866), (430, 4653556), (760, 2632933), (817, 2449240), (860, 2326778), (1634, 1224620), (1720, 1163389), (3268, 612310), (4085, 489848), (6536, 306155), (8170, 244924), (16340, 122462), (32680, 61231)]