20318880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42331}}^1$

素因数の和:42349

約数の個数: 48

約数和(自身を含む): 64005984

約数和(自身を除く): 43687104

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, 42331, 84662, 126993, 169324, 211655, 253986, 338648, 423310, 507972, 634965, 677296, 846620, 1015944, 1269930, 1354592, 1693240, 2031888, 2539860, 3386480, 4063776, 5079720, 6772960, 10159440, 20318880]

約数ペア:

[(1, 20318880), (2, 10159440), (3, 6772960), (4, 5079720), (5, 4063776), (6, 3386480), (8, 2539860), (10, 2031888), (12, 1693240), (15, 1354592), (16, 1269930), (20, 1015944), (24, 846620), (30, 677296), (32, 634965), (40, 507972), (48, 423310), (60, 338648), (80, 253986), (96, 211655), (120, 169324), (160, 126993), (240, 84662), (480, 42331)]