19403940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17021}}^1$

素因数の和:17052

約数の個数: 48

約数和(自身を含む): 57193920

約数和(自身を除く): 37789980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17021, 34042, 51063, 68084, 85105, 102126, 170210, 204252, 255315, 323399, 340420, 510630, 646798, 970197, 1021260, 1293596, 1616995, 1940394, 3233990, 3880788, 4850985, 6467980, 9701970, 19403940]

約数ペア:

[(1, 19403940), (2, 9701970), (3, 6467980), (4, 4850985), (5, 3880788), (6, 3233990), (10, 1940394), (12, 1616995), (15, 1293596), (19, 1021260), (20, 970197), (30, 646798), (38, 510630), (57, 340420), (60, 323399), (76, 255315), (95, 204252), (114, 170210), (190, 102126), (228, 85105), (285, 68084), (380, 51063), (570, 34042), (1140, 17021)]