81553836

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 244532736

約数和(自身を除く): 162978900

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 47, 49, 52, 78, 84, 91, 94, 98, 141, 147, 156, 182, 188, 196, 227, 273, 282, 294, 329, 364, 454, 546, 564, 588, 611, 637, 658, 681, 908, 987, 1092, 1222, 1274, 1316, 1362, 1589, 1833, 1911, 1974, 2303, 2444, 2548, 2724, 2951, 3178, 3666, 3822, 3948, 4277, 4606, 4767, 5902, 6356, 6909, 7332, 7644, 8554, 8853, 9212, 9534, 10669, 11123, 11804, 12831, 13818, 17108, 17706, 19068, 20657, 21338, 22246, 25662, 27636, 29939, 32007, 33369, 35412, 41314, 42676, 44492, 51324, 59878, 61971, 64014, 66738, 74683, 82628, 89817, 119756, 123942, 128028, 133476, 138697, 144599, 149366, 179634, 224049, 247884, 277394, 289198, 298732, 359268, 416091, 433797, 448098, 522781, 554788, 578396, 832182, 867594, 896196, 970879, 1045562, 1568343, 1664364, 1735188, 1941758, 2091124, 2912637, 3136686, 3883516, 5825274, 6273372, 6796153, 11650548, 13592306, 20388459, 27184612, 40776918, 81553836]

約数ペア:

[(1, 81553836), (2, 40776918), (3, 27184612), (4, 20388459), (6, 13592306), (7, 11650548), (12, 6796153), (13, 6273372), (14, 5825274), (21, 3883516), (26, 3136686), (28, 2912637), (39, 2091124), (42, 1941758), (47, 1735188), (49, 1664364), (52, 1568343), (78, 1045562), (84, 970879), (91, 896196), (94, 867594), (98, 832182), (141, 578396), (147, 554788), (156, 522781), (182, 448098), (188, 433797), (196, 416091), (227, 359268), (273, 298732), (282, 289198), (294, 277394), (329, 247884), (364, 224049), (454, 179634), (546, 149366), (564, 144599), (588, 138697), (611, 133476), (637, 128028), (658, 123942), (681, 119756), (908, 89817), (987, 82628), (1092, 74683), (1222, 66738), (1274, 64014), (1316, 61971), (1362, 59878), (1589, 51324), (1833, 44492), (1911, 42676), (1974, 41314), (2303, 35412), (2444, 33369), (2548, 32007), (2724, 29939), (2951, 27636), (3178, 25662), (3666, 22246), (3822, 21338), (3948, 20657), (4277, 19068), (4606, 17706), (4767, 17108), (5902, 13818), (6356, 12831), (6909, 11804), (7332, 11123), (7644, 10669), (8554, 9534), (8853, 9212)]