81940248

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 160

約数和(自身を含む): 252473760

約数和(自身を除く): 170533512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 71, 72, 78, 81, 104, 108, 117, 137, 142, 156, 162, 213, 216, 234, 274, 284, 312, 324, 351, 411, 426, 468, 548, 568, 639, 648, 702, 822, 852, 923, 936, 1053, 1096, 1233, 1278, 1404, 1644, 1704, 1781, 1846, 1917, 2106, 2466, 2556, 2769, 2808, 3288, 3562, 3692, 3699, 3834, 4212, 4932, 5112, 5343, 5538, 5751, 7124, 7384, 7398, 7668, 8307, 8424, 9727, 9864, 10686, 11076, 11097, 11502, 14248, 14796, 15336, 16029, 16614, 19454, 21372, 22152, 22194, 23004, 24921, 29181, 29592, 32058, 33228, 38908, 42744, 44388, 46008, 48087, 49842, 58362, 64116, 66456, 74763, 77816, 87543, 88776, 96174, 99684, 116724, 126451, 128232, 144261, 149526, 175086, 192348, 199368, 233448, 252902, 262629, 288522, 299052, 350172, 379353, 384696, 505804, 525258, 577044, 598104, 700344, 758706, 787887, 1011608, 1050516, 1138059, 1154088, 1517412, 1575774, 2101032, 2276118, 3034824, 3151548, 3414177, 4552236, 6303096, 6828354, 9104472, 10242531, 13656708, 20485062, 27313416, 40970124, 81940248]

約数ペア:

[(1, 81940248), (2, 40970124), (3, 27313416), (4, 20485062), (6, 13656708), (8, 10242531), (9, 9104472), (12, 6828354), (13, 6303096), (18, 4552236), (24, 3414177), (26, 3151548), (27, 3034824), (36, 2276118), (39, 2101032), (52, 1575774), (54, 1517412), (71, 1154088), (72, 1138059), (78, 1050516), (81, 1011608), (104, 787887), (108, 758706), (117, 700344), (137, 598104), (142, 577044), (156, 525258), (162, 505804), (213, 384696), (216, 379353), (234, 350172), (274, 299052), (284, 288522), (312, 262629), (324, 252902), (351, 233448), (411, 199368), (426, 192348), (468, 175086), (548, 149526), (568, 144261), (639, 128232), (648, 126451), (702, 116724), (822, 99684), (852, 96174), (923, 88776), (936, 87543), (1053, 77816), (1096, 74763), (1233, 66456), (1278, 64116), (1404, 58362), (1644, 49842), (1704, 48087), (1781, 46008), (1846, 44388), (1917, 42744), (2106, 38908), (2466, 33228), (2556, 32058), (2769, 29592), (2808, 29181), (3288, 24921), (3562, 23004), (3692, 22194), (3699, 22152), (3834, 21372), (4212, 19454), (4932, 16614), (5112, 16029), (5343, 15336), (5538, 14796), (5751, 14248), (7124, 11502), (7384, 11097), (7398, 11076), (7668, 10686), (8307, 9864), (8424, 9727)]