40320756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:182

約数の個数: 108

約数和(自身を含む): 121177056

約数和(自身を除く): 80856300

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 61, 63, 84, 86, 122, 126, 129, 172, 183, 244, 252, 258, 301, 366, 387, 427, 516, 549, 602, 732, 774, 854, 903, 1098, 1204, 1281, 1548, 1708, 1806, 2196, 2562, 2623, 2709, 3612, 3721, 3843, 5124, 5246, 5418, 7442, 7686, 7869, 10492, 10836, 11163, 14884, 15372, 15738, 18361, 22326, 23607, 26047, 31476, 33489, 36722, 44652, 47214, 52094, 55083, 66978, 73444, 78141, 94428, 104188, 110166, 133956, 156282, 160003, 165249, 220332, 234423, 312564, 320006, 330498, 468846, 480009, 640012, 660996, 937692, 960018, 1120021, 1440027, 1920036, 2240042, 2880054, 3360063, 4480084, 5760108, 6720126, 10080189, 13440252, 20160378, 40320756]

約数ペア:

[(1, 40320756), (2, 20160378), (3, 13440252), (4, 10080189), (6, 6720126), (7, 5760108), (9, 4480084), (12, 3360063), (14, 2880054), (18, 2240042), (21, 1920036), (28, 1440027), (36, 1120021), (42, 960018), (43, 937692), (61, 660996), (63, 640012), (84, 480009), (86, 468846), (122, 330498), (126, 320006), (129, 312564), (172, 234423), (183, 220332), (244, 165249), (252, 160003), (258, 156282), (301, 133956), (366, 110166), (387, 104188), (427, 94428), (516, 78141), (549, 73444), (602, 66978), (732, 55083), (774, 52094), (854, 47214), (903, 44652), (1098, 36722), (1204, 33489), (1281, 31476), (1548, 26047), (1708, 23607), (1806, 22326), (2196, 18361), (2562, 15738), (2623, 15372), (2709, 14884), (3612, 11163), (3721, 10836), (3843, 10492), (5124, 7869), (5246, 7686), (5418, 7442)]