208790640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{289987}}^1$

素因数の和:290006

約数の個数: 60

約数和(自身を含む): 701190984

約数和(自身を除く): 492400344

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, 289987, 579974, 869961, 1159948, 1449935, 1739922, 2319896, 2609883, 2899870, 3479844, 4349805, 4639792, 5219766, 5799740, 6959688, 8699610, 10439532, 11599480, 13049415, 13919376, 17399220, 20879064, 23198960, 26098830, 34798440, 41758128, 52197660, 69596880, 104395320, 208790640]

約数ペア:

[(1, 208790640), (2, 104395320), (3, 69596880), (4, 52197660), (5, 41758128), (6, 34798440), (8, 26098830), (9, 23198960), (10, 20879064), (12, 17399220), (15, 13919376), (16, 13049415), (18, 11599480), (20, 10439532), (24, 8699610), (30, 6959688), (36, 5799740), (40, 5219766), (45, 4639792), (48, 4349805), (60, 3479844), (72, 2899870), (80, 2609883), (90, 2319896), (120, 1739922), (144, 1449935), (180, 1159948), (240, 869961), (360, 579974), (720, 289987)]