261778320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{363581}}^1$

素因数の和:363600

約数の個数: 60

約数和(自身を含む): 879141276

約数和(自身を除く): 617362956

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 363581, 727162, 1090743, 1454324, 1817905, 2181486, 2908648, 3272229, 3635810, 4362972, 5453715, 5817296, 6544458, 7271620, 8725944, 10907430, 13088916, 14543240, 16361145, 17451888, 21814860, 26177832, 29086480, 32722290, 43629720, 52355664, 65444580, 87259440, 130889160, 261778320]

約数ペア:

[(1, 261778320), (2, 130889160), (3, 87259440), (4, 65444580), (5, 52355664), (6, 43629720), (8, 32722290), (9, 29086480), (10, 26177832), (12, 21814860), (15, 17451888), (16, 16361145), (18, 14543240), (20, 13088916), (24, 10907430), (30, 8725944), (36, 7271620), (40, 6544458), (45, 5817296), (48, 5453715), (60, 4362972), (72, 3635810), (80, 3272229), (90, 2908648), (120, 2181486), (144, 1817905), (180, 1454324), (240, 1090743), (360, 727162), (720, 363581)]