20148261700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{62983}}^1$

素因数の和:63461

約数の個数: 72

約数和(自身を含む): 50077822592

約数和(自身を除く): 29929560892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 457, 700, 914, 1828, 2285, 3199, 4570, 6398, 9140, 11425, 12796, 15995, 22850, 31990, 45700, 62983, 63980, 79975, 125966, 159950, 251932, 314915, 319900, 440881, 629830, 881762, 1259660, 1574575, 1763524, 2204405, 3149150, 4408810, 6298300, 8817620, 11022025, 22044050, 28783231, 44088100, 57566462, 115132924, 143916155, 201482617, 287832310, 402965234, 575664620, 719580775, 805930468, 1007413085, 1439161550, 2014826170, 2878323100, 4029652340, 5037065425, 10074130850, 20148261700]

約数ペア:

[(1, 20148261700), (2, 10074130850), (4, 5037065425), (5, 4029652340), (7, 2878323100), (10, 2014826170), (14, 1439161550), (20, 1007413085), (25, 805930468), (28, 719580775), (35, 575664620), (50, 402965234), (70, 287832310), (100, 201482617), (140, 143916155), (175, 115132924), (350, 57566462), (457, 44088100), (700, 28783231), (914, 22044050), (1828, 11022025), (2285, 8817620), (3199, 6298300), (4570, 4408810), (6398, 3149150), (9140, 2204405), (11425, 1763524), (12796, 1574575), (15995, 1259660), (22850, 881762), (31990, 629830), (45700, 440881), (62983, 319900), (63980, 314915), (79975, 251932), (125966, 159950)]