20005978335

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{1163}}^1$

素因数の和:1637

約数の個数: 128

約数和(自身を含む): 40549662720

約数和(自身を除く): 20543684385

約数列:

[1, 3, 5, 7, 15, 17, 21, 23, 35, 51, 69, 85, 105, 115, 119, 161, 255, 345, 357, 391, 419, 483, 595, 805, 1163, 1173, 1257, 1785, 1955, 2095, 2415, 2737, 2933, 3489, 5815, 5865, 6285, 7123, 8141, 8211, 8799, 9637, 13685, 14665, 17445, 19771, 21369, 24423, 26749, 28911, 35615, 40705, 41055, 43995, 48185, 49861, 59313, 67459, 80247, 98855, 106845, 122115, 133745, 138397, 144555, 149583, 163829, 187243, 202377, 249305, 296565, 337295, 401235, 415191, 454733, 487297, 491487, 561729, 691985, 747915, 819145, 936215, 1011885, 1146803, 1364199, 1461891, 2075955, 2273665, 2436485, 2457435, 2808645, 3183131, 3411079, 3440409, 5734015, 6820995, 7309455, 8284049, 9549393, 10233237, 11207831, 15915655, 17055395, 17202045, 24852147, 33623493, 41420245, 47746965, 51166185, 56039155, 57988343, 78454817, 124260735, 168117465, 173965029, 190533127, 235364451, 289941715, 392274085, 571599381, 869825145, 952665635, 1176822255, 1333731889, 2857996905, 4001195667, 6668659445, 20005978335]

約数ペア:

[(1, 20005978335), (3, 6668659445), (5, 4001195667), (7, 2857996905), (15, 1333731889), (17, 1176822255), (21, 952665635), (23, 869825145), (35, 571599381), (51, 392274085), (69, 289941715), (85, 235364451), (105, 190533127), (115, 173965029), (119, 168117465), (161, 124260735), (255, 78454817), (345, 57988343), (357, 56039155), (391, 51166185), (419, 47746965), (483, 41420245), (595, 33623493), (805, 24852147), (1163, 17202045), (1173, 17055395), (1257, 15915655), (1785, 11207831), (1955, 10233237), (2095, 9549393), (2415, 8284049), (2737, 7309455), (2933, 6820995), (3489, 5734015), (5815, 3440409), (5865, 3411079), (6285, 3183131), (7123, 2808645), (8141, 2457435), (8211, 2436485), (8799, 2273665), (9637, 2075955), (13685, 1461891), (14665, 1364199), (17445, 1146803), (19771, 1011885), (21369, 936215), (24423, 819145), (26749, 747915), (28911, 691985), (35615, 561729), (40705, 491487), (41055, 487297), (43995, 454733), (48185, 415191), (49861, 401235), (59313, 337295), (67459, 296565), (80247, 249305), (98855, 202377), (106845, 187243), (122115, 163829), (133745, 149583), (138397, 144555)]