20298900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 59621184

約数和(自身を除く): 39322284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 142, 150, 213, 284, 300, 355, 426, 710, 852, 953, 1065, 1420, 1775, 1906, 2130, 2859, 3550, 3812, 4260, 4765, 5325, 5718, 7100, 9530, 10650, 11436, 14295, 19060, 21300, 23825, 28590, 47650, 57180, 67663, 71475, 95300, 135326, 142950, 202989, 270652, 285900, 338315, 405978, 676630, 811956, 1014945, 1353260, 1691575, 2029890, 3383150, 4059780, 5074725, 6766300, 10149450, 20298900]

約数ペア:

[(1, 20298900), (2, 10149450), (3, 6766300), (4, 5074725), (5, 4059780), (6, 3383150), (10, 2029890), (12, 1691575), (15, 1353260), (20, 1014945), (25, 811956), (30, 676630), (50, 405978), (60, 338315), (71, 285900), (75, 270652), (100, 202989), (142, 142950), (150, 135326), (213, 95300), (284, 71475), (300, 67663), (355, 57180), (426, 47650), (710, 28590), (852, 23825), (953, 21300), (1065, 19060), (1420, 14295), (1775, 11436), (1906, 10650), (2130, 9530), (2859, 7100), (3550, 5718), (3812, 5325), (4260, 4765)]