201989000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{10631}}^1$

素因数の和:10671

約数の個数: 64

約数和(自身を含む): 497577600

約数和(自身を除く): 295588600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 3800, 4750, 9500, 10631, 19000, 21262, 42524, 53155, 85048, 106310, 201989, 212620, 265775, 403978, 425240, 531550, 807956, 1009945, 1063100, 1328875, 1615912, 2019890, 2126200, 2657750, 4039780, 5049725, 5315500, 8079560, 10099450, 10631000, 20198900, 25248625, 40397800, 50497250, 100994500, 201989000]

約数ペア:

[(1, 201989000), (2, 100994500), (4, 50497250), (5, 40397800), (8, 25248625), (10, 20198900), (19, 10631000), (20, 10099450), (25, 8079560), (38, 5315500), (40, 5049725), (50, 4039780), (76, 2657750), (95, 2126200), (100, 2019890), (125, 1615912), (152, 1328875), (190, 1063100), (200, 1009945), (250, 807956), (380, 531550), (475, 425240), (500, 403978), (760, 265775), (950, 212620), (1000, 201989), (1900, 106310), (2375, 85048), (3800, 53155), (4750, 42524), (9500, 21262), (10631, 19000)]