1978250820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8837}}^1$

素因数の和:8910

約数の個数: 192

約数和(自身を含む): 6984423936

約数和(自身を除く): 5006173116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 41, 42, 52, 60, 65, 70, 78, 82, 84, 91, 105, 123, 130, 140, 156, 164, 182, 195, 205, 210, 246, 260, 273, 287, 364, 390, 410, 420, 455, 492, 533, 546, 574, 615, 780, 820, 861, 910, 1066, 1092, 1148, 1230, 1365, 1435, 1599, 1722, 1820, 2132, 2460, 2665, 2730, 2870, 3198, 3444, 3731, 4305, 5330, 5460, 5740, 6396, 7462, 7995, 8610, 8837, 10660, 11193, 14924, 15990, 17220, 17674, 18655, 22386, 26511, 31980, 35348, 37310, 44185, 44772, 53022, 55965, 61859, 74620, 88370, 106044, 111930, 114881, 123718, 132555, 176740, 185577, 223860, 229762, 247436, 265110, 309295, 344643, 362317, 371154, 459524, 530220, 574405, 618590, 689286, 724634, 742308, 804167, 927885, 1086951, 1148810, 1237180, 1378572, 1449268, 1608334, 1723215, 1811585, 1855770, 2173902, 2297620, 2412501, 2536219, 3216668, 3446430, 3623170, 3711540, 4020835, 4347804, 4710121, 4825002, 5072438, 5434755, 6892860, 7246340, 7608657, 8041670, 9420242, 9650004, 10144876, 10869510, 12062505, 12681095, 14130363, 15217314, 16083340, 18840484, 21739020, 23550605, 24125010, 25362190, 28260726, 30434628, 32970847, 38043285, 47101210, 48250020, 50724380, 56521452, 65941694, 70651815, 76086570, 94202420, 98912541, 131883388, 141303630, 152173140, 164854235, 197825082, 282607260, 329708470, 395650164, 494562705, 659416940, 989125410, 1978250820]

約数ペア:

[(1, 1978250820), (2, 989125410), (3, 659416940), (4, 494562705), (5, 395650164), (6, 329708470), (7, 282607260), (10, 197825082), (12, 164854235), (13, 152173140), (14, 141303630), (15, 131883388), (20, 98912541), (21, 94202420), (26, 76086570), (28, 70651815), (30, 65941694), (35, 56521452), (39, 50724380), (41, 48250020), (42, 47101210), (52, 38043285), (60, 32970847), (65, 30434628), (70, 28260726), (78, 25362190), (82, 24125010), (84, 23550605), (91, 21739020), (105, 18840484), (123, 16083340), (130, 15217314), (140, 14130363), (156, 12681095), (164, 12062505), (182, 10869510), (195, 10144876), (205, 9650004), (210, 9420242), (246, 8041670), (260, 7608657), (273, 7246340), (287, 6892860), (364, 5434755), (390, 5072438), (410, 4825002), (420, 4710121), (455, 4347804), (492, 4020835), (533, 3711540), (546, 3623170), (574, 3446430), (615, 3216668), (780, 2536219), (820, 2412501), (861, 2297620), (910, 2173902), (1066, 1855770), (1092, 1811585), (1148, 1723215), (1230, 1608334), (1365, 1449268), (1435, 1378572), (1599, 1237180), (1722, 1148810), (1820, 1086951), (2132, 927885), (2460, 804167), (2665, 742308), (2730, 724634), (2870, 689286), (3198, 618590), (3444, 574405), (3731, 530220), (4305, 459524), (5330, 371154), (5460, 362317), (5740, 344643), (6396, 309295), (7462, 265110), (7995, 247436), (8610, 229762), (8837, 223860), (10660, 185577), (11193, 176740), (14924, 132555), (15990, 123718), (17220, 114881), (17674, 111930), (18655, 106044), (22386, 88370), (26511, 74620), (31980, 61859), (35348, 55965), (37310, 53022), (44185, 44772)]