20453973200

素因数分解:

$2^4\times 5^2\times {\mathrm{131}}^1\times {\mathrm{390343}}^1$

素因数の和:390492

約数の個数: 60

約数和(自身を含む): 49515917088

約数和(自身を除く): 29061943888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 131, 200, 262, 400, 524, 655, 1048, 1310, 2096, 2620, 3275, 5240, 6550, 10480, 13100, 26200, 52400, 390343, 780686, 1561372, 1951715, 3122744, 3903430, 6245488, 7806860, 9758575, 15613720, 19517150, 31227440, 39034300, 51134933, 78068600, 102269866, 156137200, 204539732, 255674665, 409079464, 511349330, 818158928, 1022698660, 1278373325, 2045397320, 2556746650, 4090794640, 5113493300, 10226986600, 20453973200]

約数ペア:

[(1, 20453973200), (2, 10226986600), (4, 5113493300), (5, 4090794640), (8, 2556746650), (10, 2045397320), (16, 1278373325), (20, 1022698660), (25, 818158928), (40, 511349330), (50, 409079464), (80, 255674665), (100, 204539732), (131, 156137200), (200, 102269866), (262, 78068600), (400, 51134933), (524, 39034300), (655, 31227440), (1048, 19517150), (1310, 15613720), (2096, 9758575), (2620, 7806860), (3275, 6245488), (5240, 3903430), (6550, 3122744), (10480, 1951715), (13100, 1561372), (26200, 780686), (52400, 390343)]