11989000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 29577600

約数和(自身を除く): 17588600

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, 631, 760, 950, 1000, 1262, 1900, 2375, 2524, 3155, 3800, 4750, 5048, 6310, 9500, 11989, 12620, 15775, 19000, 23978, 25240, 31550, 47956, 59945, 63100, 78875, 95912, 119890, 126200, 157750, 239780, 299725, 315500, 479560, 599450, 631000, 1198900, 1498625, 2397800, 2997250, 5994500, 11989000]

約数ペア:

[(1, 11989000), (2, 5994500), (4, 2997250), (5, 2397800), (8, 1498625), (10, 1198900), (19, 631000), (20, 599450), (25, 479560), (38, 315500), (40, 299725), (50, 239780), (76, 157750), (95, 126200), (100, 119890), (125, 95912), (152, 78875), (190, 63100), (200, 59945), (250, 47956), (380, 31550), (475, 25240), (500, 23978), (631, 19000), (760, 15775), (950, 12620), (1000, 11989), (1262, 9500), (1900, 6310), (2375, 5048), (2524, 4750), (3155, 3800)]