19786900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1273

約数の個数: 72

約数和(自身を含む): 51246720

約数和(自身を除く): 31459820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1229, 1610, 2300, 2458, 3220, 4025, 4916, 6145, 8050, 8603, 12290, 16100, 17206, 24580, 28267, 30725, 34412, 43015, 56534, 61450, 86030, 113068, 122900, 141335, 172060, 197869, 215075, 282670, 395738, 430150, 565340, 706675, 791476, 860300, 989345, 1413350, 1978690, 2826700, 3957380, 4946725, 9893450, 19786900]

約数ペア:

[(1, 19786900), (2, 9893450), (4, 4946725), (5, 3957380), (7, 2826700), (10, 1978690), (14, 1413350), (20, 989345), (23, 860300), (25, 791476), (28, 706675), (35, 565340), (46, 430150), (50, 395738), (70, 282670), (92, 215075), (100, 197869), (115, 172060), (140, 141335), (161, 122900), (175, 113068), (230, 86030), (322, 61450), (350, 56534), (460, 43015), (575, 34412), (644, 30725), (700, 28267), (805, 24580), (1150, 17206), (1229, 16100), (1610, 12290), (2300, 8603), (2458, 8050), (3220, 6145), (4025, 4916)]