399756960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{769}}^1$

素因数の和:828

約数の個数: 216

約数和(自身を含む): 1441620180

約数和(自身を除く): 1041863220

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 361, 380, 456, 480, 570, 608, 684, 720, 722, 760, 769, 855, 912, 1083, 1140, 1368, 1440, 1444, 1520, 1538, 1710, 1805, 1824, 2166, 2280, 2307, 2736, 2888, 3040, 3076, 3249, 3420, 3610, 3845, 4332, 4560, 4614, 5415, 5472, 5776, 6152, 6498, 6840, 6921, 7220, 7690, 8664, 9120, 9228, 10830, 11535, 11552, 12304, 12996, 13680, 13842, 14440, 14611, 15380, 16245, 17328, 18456, 21660, 23070, 24608, 25992, 27360, 27684, 28880, 29222, 30760, 32490, 34605, 34656, 36912, 43320, 43833, 46140, 51984, 55368, 57760, 58444, 61520, 64980, 69210, 73055, 73824, 86640, 87666, 92280, 103968, 110736, 116888, 123040, 129960, 131499, 138420, 146110, 173280, 175332, 184560, 219165, 221472, 233776, 259920, 262998, 276840, 277609, 292220, 350664, 369120, 438330, 467552, 519840, 525996, 553680, 555218, 584440, 657495, 701328, 832827, 876660, 1051992, 1107360, 1110436, 1168880, 1314990, 1388045, 1402656, 1665654, 1753320, 2103984, 2220872, 2337760, 2498481, 2629980, 2776090, 3331308, 3506640, 4164135, 4207968, 4441744, 4996962, 5259960, 5552180, 6662616, 7013280, 8328270, 8883488, 9993924, 10519920, 11104360, 12492405, 13325232, 16656540, 19987848, 21039840, 22208720, 24984810, 26650464, 33313080, 39975696, 44417440, 49969620, 66626160, 79951392, 99939240, 133252320, 199878480, 399756960]

約数ペア:

[(1, 399756960), (2, 199878480), (3, 133252320), (4, 99939240), (5, 79951392), (6, 66626160), (8, 49969620), (9, 44417440), (10, 39975696), (12, 33313080), (15, 26650464), (16, 24984810), (18, 22208720), (19, 21039840), (20, 19987848), (24, 16656540), (30, 13325232), (32, 12492405), (36, 11104360), (38, 10519920), (40, 9993924), (45, 8883488), (48, 8328270), (57, 7013280), (60, 6662616), (72, 5552180), (76, 5259960), (80, 4996962), (90, 4441744), (95, 4207968), (96, 4164135), (114, 3506640), (120, 3331308), (144, 2776090), (152, 2629980), (160, 2498481), (171, 2337760), (180, 2220872), (190, 2103984), (228, 1753320), (240, 1665654), (285, 1402656), (288, 1388045), (304, 1314990), (342, 1168880), (360, 1110436), (361, 1107360), (380, 1051992), (456, 876660), (480, 832827), (570, 701328), (608, 657495), (684, 584440), (720, 555218), (722, 553680), (760, 525996), (769, 519840), (855, 467552), (912, 438330), (1083, 369120), (1140, 350664), (1368, 292220), (1440, 277609), (1444, 276840), (1520, 262998), (1538, 259920), (1710, 233776), (1805, 221472), (1824, 219165), (2166, 184560), (2280, 175332), (2307, 173280), (2736, 146110), (2888, 138420), (3040, 131499), (3076, 129960), (3249, 123040), (3420, 116888), (3610, 110736), (3845, 103968), (4332, 92280), (4560, 87666), (4614, 86640), (5415, 73824), (5472, 73055), (5776, 69210), (6152, 64980), (6498, 61520), (6840, 58444), (6921, 57760), (7220, 55368), (7690, 51984), (8664, 46140), (9120, 43833), (9228, 43320), (10830, 36912), (11535, 34656), (11552, 34605), (12304, 32490), (12996, 30760), (13680, 29222), (13842, 28880), (14440, 27684), (14611, 27360), (15380, 25992), (16245, 24608), (17328, 23070), (18456, 21660)]