19600400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2616

約数の個数: 60

約数和(自身を含む): 49587600

約数和(自身を除く): 29987200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2579, 3800, 5158, 7600, 10316, 12895, 20632, 25790, 41264, 49001, 51580, 64475, 98002, 103160, 128950, 196004, 206320, 245005, 257900, 392008, 490010, 515800, 784016, 980020, 1031600, 1225025, 1960040, 2450050, 3920080, 4900100, 9800200, 19600400]

約数ペア:

[(1, 19600400), (2, 9800200), (4, 4900100), (5, 3920080), (8, 2450050), (10, 1960040), (16, 1225025), (19, 1031600), (20, 980020), (25, 784016), (38, 515800), (40, 490010), (50, 392008), (76, 257900), (80, 245005), (95, 206320), (100, 196004), (152, 128950), (190, 103160), (200, 98002), (304, 64475), (380, 51580), (400, 49001), (475, 41264), (760, 25790), (950, 20632), (1520, 12895), (1900, 10316), (2579, 7600), (3800, 5158)]