16895180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 37709280

約数和(自身を除く): 20814100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 257, 346, 380, 514, 692, 865, 1028, 1285, 1730, 2570, 3287, 3460, 4883, 5140, 6574, 9766, 13148, 16435, 19532, 24415, 32870, 44461, 48830, 65740, 88922, 97660, 177844, 222305, 444610, 844759, 889220, 1689518, 3379036, 4223795, 8447590, 16895180]

約数ペア:

[(1, 16895180), (2, 8447590), (4, 4223795), (5, 3379036), (10, 1689518), (19, 889220), (20, 844759), (38, 444610), (76, 222305), (95, 177844), (173, 97660), (190, 88922), (257, 65740), (346, 48830), (380, 44461), (514, 32870), (692, 24415), (865, 19532), (1028, 16435), (1285, 13148), (1730, 9766), (2570, 6574), (3287, 5140), (3460, 4883)]