53120920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{409}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 127526400

約数和(自身を除く): 74405480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 191, 340, 382, 409, 680, 764, 818, 955, 1528, 1636, 1910, 2045, 3247, 3272, 3820, 4090, 6494, 6953, 7640, 8180, 12988, 13906, 16235, 16360, 25976, 27812, 32470, 34765, 55624, 64940, 69530, 78119, 129880, 139060, 156238, 278120, 312476, 390595, 624952, 781190, 1328023, 1562380, 2656046, 3124760, 5312092, 6640115, 10624184, 13280230, 26560460, 53120920]

約数ペア:

[(1, 53120920), (2, 26560460), (4, 13280230), (5, 10624184), (8, 6640115), (10, 5312092), (17, 3124760), (20, 2656046), (34, 1562380), (40, 1328023), (68, 781190), (85, 624952), (136, 390595), (170, 312476), (191, 278120), (340, 156238), (382, 139060), (409, 129880), (680, 78119), (764, 69530), (818, 64940), (955, 55624), (1528, 34765), (1636, 32470), (1910, 27812), (2045, 25976), (3247, 16360), (3272, 16235), (3820, 13906), (4090, 12988), (6494, 8180), (6953, 7640)]