201991960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{10243}}^1$

素因数の和:10300

約数の個数: 64

約数和(自身を含む): 497858400

約数和(自身を除く): 295866440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1972, 2465, 3944, 4930, 9860, 10243, 19720, 20486, 40972, 51215, 81944, 102430, 174131, 204860, 297047, 348262, 409720, 594094, 696524, 870655, 1188188, 1393048, 1485235, 1741310, 2376376, 2970470, 3482620, 5049799, 5940940, 6965240, 10099598, 11881880, 20199196, 25248995, 40398392, 50497990, 100995980, 201991960]

約数ペア:

[(1, 201991960), (2, 100995980), (4, 50497990), (5, 40398392), (8, 25248995), (10, 20199196), (17, 11881880), (20, 10099598), (29, 6965240), (34, 5940940), (40, 5049799), (58, 3482620), (68, 2970470), (85, 2376376), (116, 1741310), (136, 1485235), (145, 1393048), (170, 1188188), (232, 870655), (290, 696524), (340, 594094), (493, 409720), (580, 348262), (680, 297047), (986, 204860), (1160, 174131), (1972, 102430), (2465, 81944), (3944, 51215), (4930, 40972), (9860, 20486), (10243, 19720)]