19556950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 42211584

約数和(自身を除く): 22654634

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 787, 994, 1574, 1775, 2485, 3550, 3935, 4970, 5509, 7870, 11018, 12425, 19675, 24850, 27545, 39350, 55090, 55877, 111754, 137725, 275450, 279385, 391139, 558770, 782278, 1396925, 1955695, 2793850, 3911390, 9778475, 19556950]

約数ペア:

[(1, 19556950), (2, 9778475), (5, 3911390), (7, 2793850), (10, 1955695), (14, 1396925), (25, 782278), (35, 558770), (50, 391139), (70, 279385), (71, 275450), (142, 137725), (175, 111754), (350, 55877), (355, 55090), (497, 39350), (710, 27545), (787, 24850), (994, 19675), (1574, 12425), (1775, 11018), (2485, 7870), (3550, 5509), (3935, 4970)]