20153642380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{9769}}^1$

素因数の和:9947

約数の個数: 96

約数和(自身を含む): 45793944000

約数和(自身を除く): 25640301620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 89, 95, 122, 178, 190, 244, 305, 356, 380, 445, 610, 890, 1159, 1220, 1691, 1780, 2318, 3382, 4636, 5429, 5795, 6764, 8455, 9769, 10858, 11590, 16910, 19538, 21716, 23180, 27145, 33820, 39076, 48845, 54290, 97690, 103151, 108580, 185611, 195380, 206302, 371222, 412604, 515755, 595909, 742444, 869441, 928055, 1031510, 1191818, 1738882, 1856110, 2063020, 2383636, 2979545, 3477764, 3712220, 4347205, 5959090, 8694410, 11322271, 11918180, 16519379, 17388820, 22644542, 33038758, 45289084, 53035901, 56611355, 66077516, 82596895, 106071802, 113222710, 165193790, 212143604, 226445420, 265179505, 330387580, 530359010, 1007682119, 1060718020, 2015364238, 4030728476, 5038410595, 10076821190, 20153642380]

約数ペア:

[(1, 20153642380), (2, 10076821190), (4, 5038410595), (5, 4030728476), (10, 2015364238), (19, 1060718020), (20, 1007682119), (38, 530359010), (61, 330387580), (76, 265179505), (89, 226445420), (95, 212143604), (122, 165193790), (178, 113222710), (190, 106071802), (244, 82596895), (305, 66077516), (356, 56611355), (380, 53035901), (445, 45289084), (610, 33038758), (890, 22644542), (1159, 17388820), (1220, 16519379), (1691, 11918180), (1780, 11322271), (2318, 8694410), (3382, 5959090), (4636, 4347205), (5429, 3712220), (5795, 3477764), (6764, 2979545), (8455, 2383636), (9769, 2063020), (10858, 1856110), (11590, 1738882), (16910, 1191818), (19538, 1031510), (21716, 928055), (23180, 869441), (27145, 742444), (33820, 595909), (39076, 515755), (48845, 412604), (54290, 371222), (97690, 206302), (103151, 195380), (108580, 185611)]