20942971175

素因数分解:

$5^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:982

約数の個数: 96

約数和(自身を含む): 31497984000

約数和(自身を除く): 10555012825

約数列:

[1, 5, 7, 25, 35, 41, 49, 71, 175, 205, 245, 287, 343, 355, 497, 839, 1025, 1225, 1435, 1715, 1775, 2009, 2485, 2911, 3479, 4195, 5873, 7175, 8575, 10045, 12425, 14063, 14555, 17395, 20377, 20975, 24353, 29365, 34399, 41111, 50225, 59569, 70315, 72775, 86975, 101885, 121765, 142639, 146825, 171995, 205555, 240793, 287777, 297845, 351575, 416983, 509425, 608825, 713195, 859975, 998473, 1027775, 1203965, 1438885, 1489225, 1685551, 2084915, 2442329, 2918881, 3565975, 4992365, 6019825, 7194425, 8427755, 10424575, 11798857, 12211645, 14594405, 17096303, 20432167, 24961825, 42138775, 58994285, 61058225, 72972025, 85481515, 102160835, 119674121, 294971425, 427407575, 510804175, 598370605, 837718847, 2991853025, 4188594235, 20942971175]

約数ペア:

[(1, 20942971175), (5, 4188594235), (7, 2991853025), (25, 837718847), (35, 598370605), (41, 510804175), (49, 427407575), (71, 294971425), (175, 119674121), (205, 102160835), (245, 85481515), (287, 72972025), (343, 61058225), (355, 58994285), (497, 42138775), (839, 24961825), (1025, 20432167), (1225, 17096303), (1435, 14594405), (1715, 12211645), (1775, 11798857), (2009, 10424575), (2485, 8427755), (2911, 7194425), (3479, 6019825), (4195, 4992365), (5873, 3565975), (7175, 2918881), (8575, 2442329), (10045, 2084915), (12425, 1685551), (14063, 1489225), (14555, 1438885), (17395, 1203965), (20377, 1027775), (20975, 998473), (24353, 859975), (29365, 713195), (34399, 608825), (41111, 509425), (50225, 416983), (59569, 351575), (70315, 297845), (72775, 287777), (86975, 240793), (101885, 205555), (121765, 171995), (142639, 146825)]