399787440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1321}}^1$

素因数の和:1447

約数の個数: 160

約数和(自身を含む): 1349455296

約数和(自身を除く): 949667856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 97, 104, 120, 130, 156, 194, 195, 208, 240, 260, 291, 312, 388, 390, 485, 520, 582, 624, 776, 780, 970, 1040, 1164, 1261, 1321, 1455, 1552, 1560, 1940, 2328, 2522, 2642, 2910, 3120, 3783, 3880, 3963, 4656, 5044, 5284, 5820, 6305, 6605, 7566, 7760, 7926, 10088, 10568, 11640, 12610, 13210, 15132, 15852, 17173, 18915, 19815, 20176, 21136, 23280, 25220, 26420, 30264, 31704, 34346, 37830, 39630, 50440, 51519, 52840, 60528, 63408, 68692, 75660, 79260, 85865, 100880, 103038, 105680, 128137, 137384, 151320, 158520, 171730, 206076, 256274, 257595, 274768, 302640, 317040, 343460, 384411, 412152, 512548, 515190, 640685, 686920, 768822, 824304, 1025096, 1030380, 1281370, 1373840, 1537644, 1665781, 1922055, 2050192, 2060760, 2562740, 3075288, 3331562, 3844110, 4121520, 4997343, 5125480, 6150576, 6663124, 7688220, 8328905, 9994686, 10250960, 13326248, 15376440, 16657810, 19989372, 24986715, 26652496, 30752880, 33315620, 39978744, 49973430, 66631240, 79957488, 99946860, 133262480, 199893720, 399787440]

約数ペア:

[(1, 399787440), (2, 199893720), (3, 133262480), (4, 99946860), (5, 79957488), (6, 66631240), (8, 49973430), (10, 39978744), (12, 33315620), (13, 30752880), (15, 26652496), (16, 24986715), (20, 19989372), (24, 16657810), (26, 15376440), (30, 13326248), (39, 10250960), (40, 9994686), (48, 8328905), (52, 7688220), (60, 6663124), (65, 6150576), (78, 5125480), (80, 4997343), (97, 4121520), (104, 3844110), (120, 3331562), (130, 3075288), (156, 2562740), (194, 2060760), (195, 2050192), (208, 1922055), (240, 1665781), (260, 1537644), (291, 1373840), (312, 1281370), (388, 1030380), (390, 1025096), (485, 824304), (520, 768822), (582, 686920), (624, 640685), (776, 515190), (780, 512548), (970, 412152), (1040, 384411), (1164, 343460), (1261, 317040), (1321, 302640), (1455, 274768), (1552, 257595), (1560, 256274), (1940, 206076), (2328, 171730), (2522, 158520), (2642, 151320), (2910, 137384), (3120, 128137), (3783, 105680), (3880, 103038), (3963, 100880), (4656, 85865), (5044, 79260), (5284, 75660), (5820, 68692), (6305, 63408), (6605, 60528), (7566, 52840), (7760, 51519), (7926, 50440), (10088, 39630), (10568, 37830), (11640, 34346), (12610, 31704), (13210, 30264), (15132, 26420), (15852, 25220), (17173, 23280), (18915, 21136), (19815, 20176)]