398781720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{1107727}}^1$

素因数の和:1107744

約数の個数: 48

約数和(自身を含む): 1296041760

約数和(自身を除く): 897260040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 1107727, 2215454, 3323181, 4430908, 5538635, 6646362, 8861816, 9969543, 11077270, 13292724, 16615905, 19939086, 22154540, 26585448, 33231810, 39878172, 44309080, 49847715, 66463620, 79756344, 99695430, 132927240, 199390860, 398781720]

約数ペア:

[(1, 398781720), (2, 199390860), (3, 132927240), (4, 99695430), (5, 79756344), (6, 66463620), (8, 49847715), (9, 44309080), (10, 39878172), (12, 33231810), (15, 26585448), (18, 22154540), (20, 19939086), (24, 16615905), (30, 13292724), (36, 11077270), (40, 9969543), (45, 8861816), (60, 6646362), (72, 5538635), (90, 4430908), (120, 3323181), (180, 2215454), (360, 1107727)]