28148120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:98

約数の個数: 256

約数和(自身を含む): 91929600

約数和(自身を除く): 63781480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 19, 20, 22, 26, 28, 35, 37, 38, 40, 44, 52, 55, 56, 65, 70, 74, 76, 77, 88, 91, 95, 104, 110, 130, 133, 140, 143, 148, 152, 154, 182, 185, 190, 209, 220, 247, 259, 260, 266, 280, 286, 296, 308, 364, 370, 380, 385, 407, 418, 440, 455, 481, 494, 518, 520, 532, 572, 616, 665, 703, 715, 728, 740, 760, 770, 814, 836, 910, 962, 988, 1001, 1036, 1045, 1064, 1144, 1235, 1295, 1330, 1406, 1430, 1463, 1480, 1540, 1628, 1672, 1729, 1820, 1924, 1976, 2002, 2035, 2072, 2090, 2405, 2470, 2590, 2660, 2717, 2812, 2849, 2860, 2926, 3080, 3256, 3367, 3458, 3515, 3640, 3848, 4004, 4070, 4180, 4810, 4921, 4940, 5005, 5180, 5291, 5320, 5434, 5624, 5698, 5720, 5852, 6734, 6916, 7030, 7315, 7733, 8008, 8140, 8360, 8645, 9139, 9620, 9842, 9880, 10010, 10360, 10582, 10868, 11396, 11704, 13468, 13585, 13832, 14060, 14245, 14630, 15466, 16280, 16835, 17290, 18278, 19019, 19240, 19684, 20020, 21164, 21736, 22792, 24605, 26455, 26936, 27170, 28120, 28490, 29260, 30932, 33670, 34580, 36556, 37037, 38038, 38665, 39368, 40040, 42328, 45695, 49210, 52910, 54131, 54340, 56980, 58520, 61864, 63973, 67340, 69160, 73112, 74074, 76076, 77330, 91390, 95095, 98420, 100529, 105820, 108262, 108680, 113960, 127946, 134680, 148148, 152152, 154660, 182780, 185185, 190190, 196840, 201058, 211640, 216524, 255892, 270655, 296296, 309320, 319865, 365560, 370370, 380380, 402116, 433048, 502645, 511784, 541310, 639730, 703703, 740740, 760760, 804232, 1005290, 1082620, 1279460, 1407406, 1481480, 2010580, 2165240, 2558920, 2814812, 3518515, 4021160, 5629624, 7037030, 14074060, 28148120]

約数ペア:

[(1, 28148120), (2, 14074060), (4, 7037030), (5, 5629624), (7, 4021160), (8, 3518515), (10, 2814812), (11, 2558920), (13, 2165240), (14, 2010580), (19, 1481480), (20, 1407406), (22, 1279460), (26, 1082620), (28, 1005290), (35, 804232), (37, 760760), (38, 740740), (40, 703703), (44, 639730), (52, 541310), (55, 511784), (56, 502645), (65, 433048), (70, 402116), (74, 380380), (76, 370370), (77, 365560), (88, 319865), (91, 309320), (95, 296296), (104, 270655), (110, 255892), (130, 216524), (133, 211640), (140, 201058), (143, 196840), (148, 190190), (152, 185185), (154, 182780), (182, 154660), (185, 152152), (190, 148148), (209, 134680), (220, 127946), (247, 113960), (259, 108680), (260, 108262), (266, 105820), (280, 100529), (286, 98420), (296, 95095), (308, 91390), (364, 77330), (370, 76076), (380, 74074), (385, 73112), (407, 69160), (418, 67340), (440, 63973), (455, 61864), (481, 58520), (494, 56980), (518, 54340), (520, 54131), (532, 52910), (572, 49210), (616, 45695), (665, 42328), (703, 40040), (715, 39368), (728, 38665), (740, 38038), (760, 37037), (770, 36556), (814, 34580), (836, 33670), (910, 30932), (962, 29260), (988, 28490), (1001, 28120), (1036, 27170), (1045, 26936), (1064, 26455), (1144, 24605), (1235, 22792), (1295, 21736), (1330, 21164), (1406, 20020), (1430, 19684), (1463, 19240), (1480, 19019), (1540, 18278), (1628, 17290), (1672, 16835), (1729, 16280), (1820, 15466), (1924, 14630), (1976, 14245), (2002, 14060), (2035, 13832), (2072, 13585), (2090, 13468), (2405, 11704), (2470, 11396), (2590, 10868), (2660, 10582), (2717, 10360), (2812, 10010), (2849, 9880), (2860, 9842), (2926, 9620), (3080, 9139), (3256, 8645), (3367, 8360), (3458, 8140), (3515, 8008), (3640, 7733), (3848, 7315), (4004, 7030), (4070, 6916), (4180, 6734), (4810, 5852), (4921, 5720), (4940, 5698), (5005, 5624), (5180, 5434), (5291, 5320)]