19387980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5669}}^1$

素因数の和:5703

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 42528420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5669, 11338, 17007, 22676, 28345, 34014, 51021, 56690, 68028, 85035, 102042, 107711, 113380, 170070, 204084, 215422, 255105, 323133, 340140, 430844, 510210, 538555, 646266, 969399, 1020420, 1077110, 1292532, 1615665, 1938798, 2154220, 3231330, 3877596, 4846995, 6462660, 9693990, 19387980]

約数ペア:

[(1, 19387980), (2, 9693990), (3, 6462660), (4, 4846995), (5, 3877596), (6, 3231330), (9, 2154220), (10, 1938798), (12, 1615665), (15, 1292532), (18, 1077110), (19, 1020420), (20, 969399), (30, 646266), (36, 538555), (38, 510210), (45, 430844), (57, 340140), (60, 323133), (76, 255105), (90, 215422), (95, 204084), (114, 170070), (171, 113380), (180, 107711), (190, 102042), (228, 85035), (285, 68028), (342, 56690), (380, 51021), (570, 34014), (684, 28345), (855, 22676), (1140, 17007), (1710, 11338), (3420, 5669)]