20201105505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{12541}}^1$

素因数の和:12631

約数の個数: 96

約数和(自身を含む): 39949781760

約数和(自身を除く): 19748676255

約数列:

[1, 3, 5, 7, 15, 21, 23, 29, 35, 69, 87, 105, 115, 145, 161, 203, 345, 435, 483, 529, 609, 667, 805, 1015, 1587, 2001, 2415, 2645, 3045, 3335, 3703, 4669, 7935, 10005, 11109, 12541, 14007, 15341, 18515, 23345, 37623, 46023, 55545, 62705, 70035, 76705, 87787, 107387, 188115, 230115, 263361, 288443, 322161, 363689, 438935, 536935, 865329, 1091067, 1316805, 1442215, 1610805, 1818445, 2019101, 2545823, 4326645, 5455335, 6057303, 6634189, 7637469, 8364847, 10095505, 12729115, 19902567, 25094541, 30286515, 33170945, 38187345, 41824235, 46439323, 58553929, 99512835, 125472705, 139317969, 175661787, 192391481, 232196615, 292769645, 577174443, 696589845, 878308935, 961957405, 1346740367, 2885872215, 4040221101, 6733701835, 20201105505]

約数ペア:

[(1, 20201105505), (3, 6733701835), (5, 4040221101), (7, 2885872215), (15, 1346740367), (21, 961957405), (23, 878308935), (29, 696589845), (35, 577174443), (69, 292769645), (87, 232196615), (105, 192391481), (115, 175661787), (145, 139317969), (161, 125472705), (203, 99512835), (345, 58553929), (435, 46439323), (483, 41824235), (529, 38187345), (609, 33170945), (667, 30286515), (805, 25094541), (1015, 19902567), (1587, 12729115), (2001, 10095505), (2415, 8364847), (2645, 7637469), (3045, 6634189), (3335, 6057303), (3703, 5455335), (4669, 4326645), (7935, 2545823), (10005, 2019101), (11109, 1818445), (12541, 1610805), (14007, 1442215), (15341, 1316805), (18515, 1091067), (23345, 865329), (37623, 536935), (46023, 438935), (55545, 363689), (62705, 322161), (70035, 288443), (76705, 263361), (87787, 230115), (107387, 188115)]