71881380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 230053824

約数和(自身を除く): 158172444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 43, 45, 60, 74, 86, 90, 111, 129, 148, 172, 180, 185, 215, 222, 251, 258, 333, 370, 387, 430, 444, 502, 516, 555, 645, 666, 740, 753, 774, 860, 1004, 1110, 1255, 1290, 1332, 1506, 1548, 1591, 1665, 1935, 2220, 2259, 2510, 2580, 3012, 3182, 3330, 3765, 3870, 4518, 4773, 5020, 6364, 6660, 7530, 7740, 7955, 9036, 9287, 9546, 10793, 11295, 14319, 15060, 15910, 18574, 19092, 21586, 22590, 23865, 27861, 28638, 31820, 32379, 37148, 43172, 45180, 46435, 47730, 53965, 55722, 57276, 64758, 71595, 83583, 92870, 95460, 97137, 107930, 111444, 129516, 139305, 143190, 161895, 167166, 185740, 194274, 215860, 278610, 286380, 323790, 334332, 388548, 399341, 417915, 485685, 557220, 647580, 798682, 835830, 971370, 1198023, 1597364, 1671660, 1942740, 1996705, 2396046, 3594069, 3993410, 4792092, 5990115, 7188138, 7986820, 11980230, 14376276, 17970345, 23960460, 35940690, 71881380]

約数ペア:

[(1, 71881380), (2, 35940690), (3, 23960460), (4, 17970345), (5, 14376276), (6, 11980230), (9, 7986820), (10, 7188138), (12, 5990115), (15, 4792092), (18, 3993410), (20, 3594069), (30, 2396046), (36, 1996705), (37, 1942740), (43, 1671660), (45, 1597364), (60, 1198023), (74, 971370), (86, 835830), (90, 798682), (111, 647580), (129, 557220), (148, 485685), (172, 417915), (180, 399341), (185, 388548), (215, 334332), (222, 323790), (251, 286380), (258, 278610), (333, 215860), (370, 194274), (387, 185740), (430, 167166), (444, 161895), (502, 143190), (516, 139305), (555, 129516), (645, 111444), (666, 107930), (740, 97137), (753, 95460), (774, 92870), (860, 83583), (1004, 71595), (1110, 64758), (1255, 57276), (1290, 55722), (1332, 53965), (1506, 47730), (1548, 46435), (1591, 45180), (1665, 43172), (1935, 37148), (2220, 32379), (2259, 31820), (2510, 28638), (2580, 27861), (3012, 23865), (3182, 22590), (3330, 21586), (3765, 19092), (3870, 18574), (4518, 15910), (4773, 15060), (5020, 14319), (6364, 11295), (6660, 10793), (7530, 9546), (7740, 9287), (7955, 9036)]