20970900

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{863}}^1$

素因数の和:892

約数の個数: 108

約数和(自身を含む): 68245632

約数和(自身を除く): 47274732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 810, 863, 900, 972, 1215, 1350, 1620, 1726, 2025, 2430, 2589, 2700, 3452, 4050, 4315, 4860, 5178, 6075, 7767, 8100, 8630, 10356, 12150, 12945, 15534, 17260, 21575, 23301, 24300, 25890, 31068, 38835, 43150, 46602, 51780, 64725, 69903, 77670, 86300, 93204, 116505, 129450, 139806, 155340, 194175, 209709, 233010, 258900, 279612, 349515, 388350, 419418, 466020, 582525, 699030, 776700, 838836, 1048545, 1165050, 1398060, 1747575, 2097090, 2330100, 3495150, 4194180, 5242725, 6990300, 10485450, 20970900]

約数ペア:

[(1, 20970900), (2, 10485450), (3, 6990300), (4, 5242725), (5, 4194180), (6, 3495150), (9, 2330100), (10, 2097090), (12, 1747575), (15, 1398060), (18, 1165050), (20, 1048545), (25, 838836), (27, 776700), (30, 699030), (36, 582525), (45, 466020), (50, 419418), (54, 388350), (60, 349515), (75, 279612), (81, 258900), (90, 233010), (100, 209709), (108, 194175), (135, 155340), (150, 139806), (162, 129450), (180, 116505), (225, 93204), (243, 86300), (270, 77670), (300, 69903), (324, 64725), (405, 51780), (450, 46602), (486, 43150), (540, 38835), (675, 31068), (810, 25890), (863, 24300), (900, 23301), (972, 21575), (1215, 17260), (1350, 15534), (1620, 12945), (1726, 12150), (2025, 10356), (2430, 8630), (2589, 8100), (2700, 7767), (3452, 6075), (4050, 5178), (4315, 4860)]