20450460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17939}}^1$

素因数の和:17970

約数の個数: 48

約数和(自身を含む): 60278400

約数和(自身を除く): 39827940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17939, 35878, 53817, 71756, 89695, 107634, 179390, 215268, 269085, 340841, 358780, 538170, 681682, 1022523, 1076340, 1363364, 1704205, 2045046, 3408410, 4090092, 5112615, 6816820, 10225230, 20450460]

約数ペア:

[(1, 20450460), (2, 10225230), (3, 6816820), (4, 5112615), (5, 4090092), (6, 3408410), (10, 2045046), (12, 1704205), (15, 1363364), (19, 1076340), (20, 1022523), (30, 681682), (38, 538170), (57, 358780), (60, 340841), (76, 269085), (95, 215268), (114, 179390), (190, 107634), (228, 89695), (285, 71756), (380, 53817), (570, 35878), (1140, 17939)]