19720950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1801}}^1$

素因数の和:1889

約数の個数: 48

約数和(自身を含む): 49605456

約数和(自身を除く): 29884506

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 73, 75, 146, 150, 219, 365, 438, 730, 1095, 1801, 1825, 2190, 3602, 3650, 5403, 5475, 9005, 10806, 10950, 18010, 27015, 45025, 54030, 90050, 131473, 135075, 262946, 270150, 394419, 657365, 788838, 1314730, 1972095, 3286825, 3944190, 6573650, 9860475, 19720950]

約数ペア:

[(1, 19720950), (2, 9860475), (3, 6573650), (5, 3944190), (6, 3286825), (10, 1972095), (15, 1314730), (25, 788838), (30, 657365), (50, 394419), (73, 270150), (75, 262946), (146, 135075), (150, 131473), (219, 90050), (365, 54030), (438, 45025), (730, 27015), (1095, 18010), (1801, 10950), (1825, 10806), (2190, 9005), (3602, 5475), (3650, 5403)]