81904284

素因数分解:

$2^2\times 3^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 240

約数和(自身を含む): 276460800

約数和(自身を除く): 194556516

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 49, 54, 63, 66, 67, 77, 81, 84, 98, 99, 108, 126, 132, 134, 147, 154, 162, 189, 196, 198, 201, 231, 252, 268, 294, 297, 308, 324, 343, 378, 396, 402, 441, 462, 469, 539, 567, 588, 594, 603, 686, 693, 737, 756, 804, 882, 891, 924, 938, 1029, 1078, 1134, 1188, 1206, 1323, 1372, 1386, 1407, 1474, 1617, 1764, 1782, 1809, 1876, 2058, 2079, 2156, 2211, 2268, 2412, 2646, 2772, 2814, 2948, 3087, 3234, 3283, 3564, 3618, 3773, 3969, 4116, 4158, 4221, 4422, 4851, 5159, 5292, 5427, 5628, 6174, 6237, 6468, 6566, 6633, 7236, 7546, 7938, 8316, 8442, 8844, 9261, 9702, 9849, 10318, 10854, 11319, 12348, 12474, 12663, 13132, 13266, 14553, 15092, 15477, 15876, 16884, 18522, 19404, 19698, 19899, 20636, 21708, 22638, 22981, 24948, 25326, 26532, 27783, 29106, 29547, 30954, 33957, 36113, 37044, 37989, 39396, 39798, 43659, 45276, 45962, 46431, 50652, 55566, 58212, 59094, 59697, 61908, 67914, 68943, 72226, 75978, 79596, 87318, 88641, 91924, 92862, 101871, 108339, 111132, 118188, 119394, 135828, 137886, 139293, 144452, 151956, 174636, 177282, 185724, 203742, 206829, 216678, 238788, 252791, 265923, 275772, 278586, 305613, 325017, 354564, 407484, 413658, 417879, 433356, 505582, 531846, 557172, 611226, 620487, 650034, 758373, 827316, 835758, 975051, 1011164, 1063692, 1222452, 1240974, 1300068, 1516746, 1671516, 1861461, 1950102, 2275119, 2481948, 2925153, 3033492, 3722922, 3900204, 4550238, 5850306, 6825357, 7445844, 9100476, 11700612, 13650714, 20476071, 27301428, 40952142, 81904284]

約数ペア:

[(1, 81904284), (2, 40952142), (3, 27301428), (4, 20476071), (6, 13650714), (7, 11700612), (9, 9100476), (11, 7445844), (12, 6825357), (14, 5850306), (18, 4550238), (21, 3900204), (22, 3722922), (27, 3033492), (28, 2925153), (33, 2481948), (36, 2275119), (42, 1950102), (44, 1861461), (49, 1671516), (54, 1516746), (63, 1300068), (66, 1240974), (67, 1222452), (77, 1063692), (81, 1011164), (84, 975051), (98, 835758), (99, 827316), (108, 758373), (126, 650034), (132, 620487), (134, 611226), (147, 557172), (154, 531846), (162, 505582), (189, 433356), (196, 417879), (198, 413658), (201, 407484), (231, 354564), (252, 325017), (268, 305613), (294, 278586), (297, 275772), (308, 265923), (324, 252791), (343, 238788), (378, 216678), (396, 206829), (402, 203742), (441, 185724), (462, 177282), (469, 174636), (539, 151956), (567, 144452), (588, 139293), (594, 137886), (603, 135828), (686, 119394), (693, 118188), (737, 111132), (756, 108339), (804, 101871), (882, 92862), (891, 91924), (924, 88641), (938, 87318), (1029, 79596), (1078, 75978), (1134, 72226), (1188, 68943), (1206, 67914), (1323, 61908), (1372, 59697), (1386, 59094), (1407, 58212), (1474, 55566), (1617, 50652), (1764, 46431), (1782, 45962), (1809, 45276), (1876, 43659), (2058, 39798), (2079, 39396), (2156, 37989), (2211, 37044), (2268, 36113), (2412, 33957), (2646, 30954), (2772, 29547), (2814, 29106), (2948, 27783), (3087, 26532), (3234, 25326), (3283, 24948), (3564, 22981), (3618, 22638), (3773, 21708), (3969, 20636), (4116, 19899), (4158, 19698), (4221, 19404), (4422, 18522), (4851, 16884), (5159, 15876), (5292, 15477), (5427, 15092), (5628, 14553), (6174, 13266), (6237, 13132), (6468, 12663), (6566, 12474), (6633, 12348), (7236, 11319), (7546, 10854), (7938, 10318), (8316, 9849), (8442, 9702), (8844, 9261)]