19071820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1619}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 24473780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1619, 2356, 2945, 3238, 5890, 6476, 8095, 11780, 16190, 30761, 32380, 50189, 61522, 100378, 123044, 153805, 200756, 250945, 307610, 501890, 615220, 953591, 1003780, 1907182, 3814364, 4767955, 9535910, 19071820]

約数ペア:

[(1, 19071820), (2, 9535910), (4, 4767955), (5, 3814364), (10, 1907182), (19, 1003780), (20, 953591), (31, 615220), (38, 501890), (62, 307610), (76, 250945), (95, 200756), (124, 153805), (155, 123044), (190, 100378), (310, 61522), (380, 50189), (589, 32380), (620, 30761), (1178, 16190), (1619, 11780), (2356, 8095), (2945, 6476), (3238, 5890)]