1815679900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:956

約数の個数: 144

約数和(自身を含む): 4462214400

約数和(自身を除く): 2646534500

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 67, 68, 76, 85, 95, 100, 134, 170, 190, 268, 323, 335, 340, 380, 425, 475, 646, 670, 839, 850, 950, 1139, 1273, 1292, 1340, 1615, 1675, 1678, 1700, 1900, 2278, 2546, 3230, 3350, 3356, 4195, 4556, 5092, 5695, 6365, 6460, 6700, 8075, 8390, 11390, 12730, 14263, 15941, 16150, 16780, 20975, 21641, 22780, 25460, 28475, 28526, 31825, 31882, 32300, 41950, 43282, 56213, 56950, 57052, 63650, 63764, 71315, 79705, 83900, 86564, 108205, 112426, 113900, 127300, 142630, 159410, 216410, 224852, 270997, 281065, 285260, 318820, 356575, 398525, 432820, 541025, 541994, 562130, 713150, 797050, 955621, 1068047, 1082050, 1083988, 1124260, 1354985, 1405325, 1426300, 1594100, 1911242, 2136094, 2164100, 2709970, 2810650, 3822484, 4272188, 4778105, 5340235, 5419940, 5621300, 6774925, 9556210, 10680470, 13549850, 18156799, 19112420, 21360940, 23890525, 26701175, 27099700, 36313598, 47781050, 53402350, 72627196, 90783995, 95562100, 106804700, 181567990, 363135980, 453919975, 907839950, 1815679900]

約数ペア:

[(1, 1815679900), (2, 907839950), (4, 453919975), (5, 363135980), (10, 181567990), (17, 106804700), (19, 95562100), (20, 90783995), (25, 72627196), (34, 53402350), (38, 47781050), (50, 36313598), (67, 27099700), (68, 26701175), (76, 23890525), (85, 21360940), (95, 19112420), (100, 18156799), (134, 13549850), (170, 10680470), (190, 9556210), (268, 6774925), (323, 5621300), (335, 5419940), (340, 5340235), (380, 4778105), (425, 4272188), (475, 3822484), (646, 2810650), (670, 2709970), (839, 2164100), (850, 2136094), (950, 1911242), (1139, 1594100), (1273, 1426300), (1292, 1405325), (1340, 1354985), (1615, 1124260), (1675, 1083988), (1678, 1082050), (1700, 1068047), (1900, 955621), (2278, 797050), (2546, 713150), (3230, 562130), (3350, 541994), (3356, 541025), (4195, 432820), (4556, 398525), (5092, 356575), (5695, 318820), (6365, 285260), (6460, 281065), (6700, 270997), (8075, 224852), (8390, 216410), (11390, 159410), (12730, 142630), (14263, 127300), (15941, 113900), (16150, 112426), (16780, 108205), (20975, 86564), (21641, 83900), (22780, 79705), (25460, 71315), (28475, 63764), (28526, 63650), (31825, 57052), (31882, 56950), (32300, 56213), (41950, 43282)]