20178070100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{45131}}^1$

素因数の和:45425

約数の個数: 72

約数和(自身を含む): 46539396288

約数和(自身を除く): 26361326188

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 263, 340, 425, 526, 850, 1052, 1315, 1700, 2630, 4471, 5260, 6575, 8942, 13150, 17884, 22355, 26300, 44710, 45131, 89420, 90262, 111775, 180524, 223550, 225655, 447100, 451310, 767227, 902620, 1128275, 1534454, 2256550, 3068908, 3836135, 4513100, 7672270, 11869453, 15344540, 19180675, 23738906, 38361350, 47477812, 59347265, 76722700, 118694530, 201780701, 237389060, 296736325, 403561402, 593472650, 807122804, 1008903505, 1186945300, 2017807010, 4035614020, 5044517525, 10089035050, 20178070100]

約数ペア:

[(1, 20178070100), (2, 10089035050), (4, 5044517525), (5, 4035614020), (10, 2017807010), (17, 1186945300), (20, 1008903505), (25, 807122804), (34, 593472650), (50, 403561402), (68, 296736325), (85, 237389060), (100, 201780701), (170, 118694530), (263, 76722700), (340, 59347265), (425, 47477812), (526, 38361350), (850, 23738906), (1052, 19180675), (1315, 15344540), (1700, 11869453), (2630, 7672270), (4471, 4513100), (5260, 3836135), (6575, 3068908), (8942, 2256550), (13150, 1534454), (17884, 1128275), (22355, 902620), (26300, 767227), (44710, 451310), (45131, 447100), (89420, 225655), (90262, 223550), (111775, 180524)]