19807500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 120

約数和(自身を含む): 61230400

約数和(自身を除く): 41422900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 125, 139, 150, 190, 228, 250, 278, 285, 300, 375, 380, 417, 475, 500, 556, 570, 625, 695, 750, 834, 950, 1140, 1250, 1390, 1425, 1500, 1668, 1875, 1900, 2085, 2375, 2500, 2641, 2780, 2850, 3475, 3750, 4170, 4750, 5282, 5700, 6950, 7125, 7500, 7923, 8340, 9500, 10425, 10564, 11875, 13205, 13900, 14250, 15846, 17375, 20850, 23750, 26410, 28500, 31692, 34750, 35625, 39615, 41700, 47500, 52125, 52820, 66025, 69500, 71250, 79230, 86875, 104250, 132050, 142500, 158460, 173750, 198075, 208500, 260625, 264100, 330125, 347500, 396150, 521250, 660250, 792300, 990375, 1042500, 1320500, 1650625, 1980750, 3301250, 3961500, 4951875, 6602500, 9903750, 19807500]

約数ペア:

[(1, 19807500), (2, 9903750), (3, 6602500), (4, 4951875), (5, 3961500), (6, 3301250), (10, 1980750), (12, 1650625), (15, 1320500), (19, 1042500), (20, 990375), (25, 792300), (30, 660250), (38, 521250), (50, 396150), (57, 347500), (60, 330125), (75, 264100), (76, 260625), (95, 208500), (100, 198075), (114, 173750), (125, 158460), (139, 142500), (150, 132050), (190, 104250), (228, 86875), (250, 79230), (278, 71250), (285, 69500), (300, 66025), (375, 52820), (380, 52125), (417, 47500), (475, 41700), (500, 39615), (556, 35625), (570, 34750), (625, 31692), (695, 28500), (750, 26410), (834, 23750), (950, 20850), (1140, 17375), (1250, 15846), (1390, 14250), (1425, 13900), (1500, 13205), (1668, 11875), (1875, 10564), (1900, 10425), (2085, 9500), (2375, 8340), (2500, 7923), (2641, 7500), (2780, 7125), (2850, 6950), (3475, 5700), (3750, 5282), (4170, 4750)]