281070720

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{6971}}^1$

素因数の和:7003

約数の個数: 192

約数和(自身を含む): 1109384640

約数和(自身を除く): 828313920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6720, 6971, 8064, 10080, 13440, 13942, 20160, 20913, 27884, 34855, 40320, 41826, 48797, 55768, 62739, 69710, 83652, 97594, 104565, 111536, 125478, 139420, 146391, 167304, 195188, 209130, 223072, 243985, 250956, 278840, 292782, 313695, 334608, 390376, 418260, 439173, 446144, 487970, 501912, 557680, 585564, 627390, 669216, 731955, 780752, 836520, 878346, 892288, 975940, 1003824, 1115360, 1171128, 1254780, 1338432, 1463910, 1561504, 1673040, 1756692, 1951880, 2007648, 2195865, 2230720, 2342256, 2509560, 2676864, 2927820, 3123008, 3346080, 3513384, 3903760, 4015296, 4391730, 4461440, 4684512, 5019120, 5855640, 6246016, 6692160, 7026768, 7807520, 8030592, 8783460, 9369024, 10038240, 11711280, 13384320, 14053536, 15615040, 17566920, 18738048, 20076480, 23422560, 28107072, 31230080, 35133840, 40152960, 46845120, 56214144, 70267680, 93690240, 140535360, 281070720]

約数ペア:

[(1, 281070720), (2, 140535360), (3, 93690240), (4, 70267680), (5, 56214144), (6, 46845120), (7, 40152960), (8, 35133840), (9, 31230080), (10, 28107072), (12, 23422560), (14, 20076480), (15, 18738048), (16, 17566920), (18, 15615040), (20, 14053536), (21, 13384320), (24, 11711280), (28, 10038240), (30, 9369024), (32, 8783460), (35, 8030592), (36, 7807520), (40, 7026768), (42, 6692160), (45, 6246016), (48, 5855640), (56, 5019120), (60, 4684512), (63, 4461440), (64, 4391730), (70, 4015296), (72, 3903760), (80, 3513384), (84, 3346080), (90, 3123008), (96, 2927820), (105, 2676864), (112, 2509560), (120, 2342256), (126, 2230720), (128, 2195865), (140, 2007648), (144, 1951880), (160, 1756692), (168, 1673040), (180, 1561504), (192, 1463910), (210, 1338432), (224, 1254780), (240, 1171128), (252, 1115360), (280, 1003824), (288, 975940), (315, 892288), (320, 878346), (336, 836520), (360, 780752), (384, 731955), (420, 669216), (448, 627390), (480, 585564), (504, 557680), (560, 501912), (576, 487970), (630, 446144), (640, 439173), (672, 418260), (720, 390376), (840, 334608), (896, 313695), (960, 292782), (1008, 278840), (1120, 250956), (1152, 243985), (1260, 223072), (1344, 209130), (1440, 195188), (1680, 167304), (1920, 146391), (2016, 139420), (2240, 125478), (2520, 111536), (2688, 104565), (2880, 97594), (3360, 83652), (4032, 69710), (4480, 62739), (5040, 55768), (5760, 48797), (6720, 41826), (6971, 40320), (8064, 34855), (10080, 27884), (13440, 20913), (13942, 20160)]