20715480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19181}}^1$

素因数の和:19201

約数の個数: 64

約数和(自身を含む): 69055200

約数和(自身を除く): 48339720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19181, 38362, 57543, 76724, 95905, 115086, 153448, 172629, 191810, 230172, 287715, 345258, 383620, 460344, 517887, 575430, 690516, 767240, 863145, 1035774, 1150860, 1381032, 1726290, 2071548, 2301720, 2589435, 3452580, 4143096, 5178870, 6905160, 10357740, 20715480]

約数ペア:

[(1, 20715480), (2, 10357740), (3, 6905160), (4, 5178870), (5, 4143096), (6, 3452580), (8, 2589435), (9, 2301720), (10, 2071548), (12, 1726290), (15, 1381032), (18, 1150860), (20, 1035774), (24, 863145), (27, 767240), (30, 690516), (36, 575430), (40, 517887), (45, 460344), (54, 383620), (60, 345258), (72, 287715), (90, 230172), (108, 191810), (120, 172629), (135, 153448), (180, 115086), (216, 95905), (270, 76724), (360, 57543), (540, 38362), (1080, 19181)]