638839680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{332729}}^1$

素因数の和:332751

約数の個数: 64

約数和(自身を含む): 2036307600

約数和(自身を除く): 1397467920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 332729, 665458, 998187, 1330916, 1663645, 1996374, 2661832, 3327290, 3992748, 4990935, 5323664, 6654580, 7985496, 9981870, 10647328, 13309160, 15970992, 19963740, 21294656, 26618320, 31941984, 39927480, 42589312, 53236640, 63883968, 79854960, 106473280, 127767936, 159709920, 212946560, 319419840, 638839680]

約数ペア:

[(1, 638839680), (2, 319419840), (3, 212946560), (4, 159709920), (5, 127767936), (6, 106473280), (8, 79854960), (10, 63883968), (12, 53236640), (15, 42589312), (16, 39927480), (20, 31941984), (24, 26618320), (30, 21294656), (32, 19963740), (40, 15970992), (48, 13309160), (60, 10647328), (64, 9981870), (80, 7985496), (96, 6654580), (120, 5323664), (128, 4990935), (160, 3992748), (192, 3327290), (240, 2661832), (320, 1996374), (384, 1663645), (480, 1330916), (640, 998187), (960, 665458), (1920, 332729)]