72423540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{251}}^1$

素因数の和:502

約数の個数: 144

約数和(自身を含む): 253169280

約数和(自身を除く): 180745740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 229, 251, 252, 315, 420, 458, 502, 630, 687, 753, 916, 1004, 1145, 1255, 1260, 1374, 1506, 1603, 1757, 2061, 2259, 2290, 2510, 2748, 3012, 3206, 3435, 3514, 3765, 4122, 4518, 4580, 4809, 5020, 5271, 6412, 6870, 7028, 7530, 8015, 8244, 8785, 9036, 9618, 10305, 10542, 11295, 13740, 14427, 15060, 15813, 16030, 17570, 19236, 20610, 21084, 22590, 24045, 26355, 28854, 31626, 32060, 35140, 41220, 45180, 48090, 52710, 57479, 57708, 63252, 72135, 79065, 96180, 105420, 114958, 144270, 158130, 172437, 229916, 287395, 288540, 316260, 344874, 402353, 517311, 574790, 689748, 804706, 862185, 1034622, 1149580, 1207059, 1609412, 1724370, 2011765, 2069244, 2414118, 2586555, 3448740, 3621177, 4023530, 4828236, 5173110, 6035295, 7242354, 8047060, 10346220, 12070590, 14484708, 18105885, 24141180, 36211770, 72423540]

約数ペア:

[(1, 72423540), (2, 36211770), (3, 24141180), (4, 18105885), (5, 14484708), (6, 12070590), (7, 10346220), (9, 8047060), (10, 7242354), (12, 6035295), (14, 5173110), (15, 4828236), (18, 4023530), (20, 3621177), (21, 3448740), (28, 2586555), (30, 2414118), (35, 2069244), (36, 2011765), (42, 1724370), (45, 1609412), (60, 1207059), (63, 1149580), (70, 1034622), (84, 862185), (90, 804706), (105, 689748), (126, 574790), (140, 517311), (180, 402353), (210, 344874), (229, 316260), (251, 288540), (252, 287395), (315, 229916), (420, 172437), (458, 158130), (502, 144270), (630, 114958), (687, 105420), (753, 96180), (916, 79065), (1004, 72135), (1145, 63252), (1255, 57708), (1260, 57479), (1374, 52710), (1506, 48090), (1603, 45180), (1757, 41220), (2061, 35140), (2259, 32060), (2290, 31626), (2510, 28854), (2748, 26355), (3012, 24045), (3206, 22590), (3435, 21084), (3514, 20610), (3765, 19236), (4122, 17570), (4518, 16030), (4580, 15813), (4809, 15060), (5020, 14427), (5271, 13740), (6412, 11295), (6870, 10542), (7028, 10305), (7530, 9618), (8015, 9036), (8244, 8785)]