2129900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:111

約数の個数: 54

約数和(自身を含む): 4960620

約数和(自身を除く): 2830720

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 59, 76, 95, 100, 118, 190, 236, 295, 361, 380, 475, 590, 722, 950, 1121, 1180, 1444, 1475, 1805, 1900, 2242, 2950, 3610, 4484, 5605, 5900, 7220, 9025, 11210, 18050, 21299, 22420, 28025, 36100, 42598, 56050, 85196, 106495, 112100, 212990, 425980, 532475, 1064950, 2129900]

約数ペア:

[(1, 2129900), (2, 1064950), (4, 532475), (5, 425980), (10, 212990), (19, 112100), (20, 106495), (25, 85196), (38, 56050), (50, 42598), (59, 36100), (76, 28025), (95, 22420), (100, 21299), (118, 18050), (190, 11210), (236, 9025), (295, 7220), (361, 5900), (380, 5605), (475, 4484), (590, 3610), (722, 2950), (950, 2242), (1121, 1900), (1180, 1805), (1444, 1475)]