19488720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81203}}^1$

素因数の和:81219

約数の個数: 40

約数和(自身を含む): 60415776

約数和(自身を除く): 40927056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81203, 162406, 243609, 324812, 406015, 487218, 649624, 812030, 974436, 1218045, 1299248, 1624060, 1948872, 2436090, 3248120, 3897744, 4872180, 6496240, 9744360, 19488720]

約数ペア:

[(1, 19488720), (2, 9744360), (3, 6496240), (4, 4872180), (5, 3897744), (6, 3248120), (8, 2436090), (10, 1948872), (12, 1624060), (15, 1299248), (16, 1218045), (20, 974436), (24, 812030), (30, 649624), (40, 487218), (48, 406015), (60, 324812), (80, 243609), (120, 162406), (240, 81203)]