400291840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 1078721280

約数和(自身を除く): 678429440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 97, 104, 124, 128, 130, 155, 160, 194, 208, 248, 256, 260, 310, 320, 388, 403, 416, 485, 496, 512, 520, 620, 640, 776, 806, 832, 970, 992, 1024, 1040, 1240, 1261, 1280, 1552, 1612, 1664, 1940, 1984, 2015, 2048, 2080, 2480, 2522, 2560, 3007, 3104, 3224, 3328, 3880, 3968, 4030, 4160, 4960, 5044, 5120, 6014, 6208, 6305, 6448, 6656, 7760, 7936, 8060, 8320, 9920, 10088, 10240, 12028, 12416, 12610, 12896, 13312, 15035, 15520, 15872, 16120, 16640, 19840, 20176, 24056, 24832, 25220, 25792, 26624, 30070, 31040, 31744, 32240, 33280, 39091, 39680, 40352, 48112, 49664, 50440, 51584, 60140, 62080, 63488, 64480, 66560, 78182, 79360, 80704, 96224, 99328, 100880, 103168, 120280, 124160, 128960, 133120, 156364, 158720, 161408, 192448, 195455, 198656, 201760, 206336, 240560, 248320, 257920, 312728, 317440, 322816, 384896, 390910, 403520, 412672, 481120, 496640, 515840, 625456, 645632, 769792, 781820, 807040, 825344, 962240, 993280, 1031680, 1250912, 1291264, 1539584, 1563640, 1614080, 1924480, 2063360, 2501824, 2582528, 3079168, 3127280, 3228160, 3848960, 4126720, 5003648, 6158336, 6254560, 6456320, 7697920, 10007296, 12509120, 12912640, 15395840, 20014592, 25018240, 30791680, 40029184, 50036480, 80058368, 100072960, 200145920, 400291840]

約数ペア:

[(1, 400291840), (2, 200145920), (4, 100072960), (5, 80058368), (8, 50036480), (10, 40029184), (13, 30791680), (16, 25018240), (20, 20014592), (26, 15395840), (31, 12912640), (32, 12509120), (40, 10007296), (52, 7697920), (62, 6456320), (64, 6254560), (65, 6158336), (80, 5003648), (97, 4126720), (104, 3848960), (124, 3228160), (128, 3127280), (130, 3079168), (155, 2582528), (160, 2501824), (194, 2063360), (208, 1924480), (248, 1614080), (256, 1563640), (260, 1539584), (310, 1291264), (320, 1250912), (388, 1031680), (403, 993280), (416, 962240), (485, 825344), (496, 807040), (512, 781820), (520, 769792), (620, 645632), (640, 625456), (776, 515840), (806, 496640), (832, 481120), (970, 412672), (992, 403520), (1024, 390910), (1040, 384896), (1240, 322816), (1261, 317440), (1280, 312728), (1552, 257920), (1612, 248320), (1664, 240560), (1940, 206336), (1984, 201760), (2015, 198656), (2048, 195455), (2080, 192448), (2480, 161408), (2522, 158720), (2560, 156364), (3007, 133120), (3104, 128960), (3224, 124160), (3328, 120280), (3880, 103168), (3968, 100880), (4030, 99328), (4160, 96224), (4960, 80704), (5044, 79360), (5120, 78182), (6014, 66560), (6208, 64480), (6305, 63488), (6448, 62080), (6656, 60140), (7760, 51584), (7936, 50440), (8060, 49664), (8320, 48112), (9920, 40352), (10088, 39680), (10240, 39091), (12028, 33280), (12416, 32240), (12610, 31744), (12896, 31040), (13312, 30070), (15035, 26624), (15520, 25792), (15872, 25220), (16120, 24832), (16640, 24056), (19840, 20176)]