19650720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{40939}}^1$

素因数の和:40957

約数の個数: 48

約数和(自身を含む): 61901280

約数和(自身を除く): 42250560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 40939, 81878, 122817, 163756, 204695, 245634, 327512, 409390, 491268, 614085, 655024, 818780, 982536, 1228170, 1310048, 1637560, 1965072, 2456340, 3275120, 3930144, 4912680, 6550240, 9825360, 19650720]

約数ペア:

[(1, 19650720), (2, 9825360), (3, 6550240), (4, 4912680), (5, 3930144), (6, 3275120), (8, 2456340), (10, 1965072), (12, 1637560), (15, 1310048), (16, 1228170), (20, 982536), (24, 818780), (30, 655024), (32, 614085), (40, 491268), (48, 409390), (60, 327512), (80, 245634), (96, 204695), (120, 163756), (160, 122817), (240, 81878), (480, 40939)]