72775780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 199717056

約数和(自身を除く): 126941276

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 49, 55, 70, 77, 86, 98, 110, 140, 154, 157, 172, 196, 215, 220, 245, 301, 308, 314, 385, 430, 473, 490, 539, 602, 628, 770, 785, 860, 946, 980, 1078, 1099, 1204, 1505, 1540, 1570, 1727, 1892, 2107, 2156, 2198, 2365, 2695, 3010, 3140, 3311, 3454, 4214, 4396, 4730, 5390, 5495, 6020, 6622, 6751, 6908, 7693, 8428, 8635, 9460, 10535, 10780, 10990, 12089, 13244, 13502, 15386, 16555, 17270, 21070, 21980, 23177, 24178, 27004, 30772, 33110, 33755, 34540, 38465, 42140, 46354, 47257, 48356, 60445, 66220, 67510, 74261, 76930, 84623, 92708, 94514, 115885, 120890, 135020, 148522, 153860, 169246, 189028, 231770, 236285, 241780, 297044, 330799, 338492, 371305, 423115, 463540, 472570, 519827, 661598, 742610, 846230, 945140, 1039654, 1323196, 1485220, 1653995, 1692460, 2079308, 2599135, 3307990, 3638789, 5198270, 6615980, 7277578, 10396540, 14555156, 18193945, 36387890, 72775780]

約数ペア:

[(1, 72775780), (2, 36387890), (4, 18193945), (5, 14555156), (7, 10396540), (10, 7277578), (11, 6615980), (14, 5198270), (20, 3638789), (22, 3307990), (28, 2599135), (35, 2079308), (43, 1692460), (44, 1653995), (49, 1485220), (55, 1323196), (70, 1039654), (77, 945140), (86, 846230), (98, 742610), (110, 661598), (140, 519827), (154, 472570), (157, 463540), (172, 423115), (196, 371305), (215, 338492), (220, 330799), (245, 297044), (301, 241780), (308, 236285), (314, 231770), (385, 189028), (430, 169246), (473, 153860), (490, 148522), (539, 135020), (602, 120890), (628, 115885), (770, 94514), (785, 92708), (860, 84623), (946, 76930), (980, 74261), (1078, 67510), (1099, 66220), (1204, 60445), (1505, 48356), (1540, 47257), (1570, 46354), (1727, 42140), (1892, 38465), (2107, 34540), (2156, 33755), (2198, 33110), (2365, 30772), (2695, 27004), (3010, 24178), (3140, 23177), (3311, 21980), (3454, 21070), (4214, 17270), (4396, 16555), (4730, 15386), (5390, 13502), (5495, 13244), (6020, 12089), (6622, 10990), (6751, 10780), (6908, 10535), (7693, 9460), (8428, 8635)]