81908658

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 160

約数和(自身を含む): 219542400

約数和(自身を除く): 137633742

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 23, 26, 27, 38, 39, 46, 54, 57, 69, 78, 81, 89, 114, 117, 138, 162, 171, 178, 207, 234, 247, 267, 299, 342, 351, 414, 437, 494, 513, 534, 598, 621, 702, 741, 801, 874, 897, 1026, 1053, 1157, 1242, 1311, 1482, 1539, 1602, 1691, 1794, 1863, 2047, 2106, 2223, 2314, 2403, 2622, 2691, 3078, 3382, 3471, 3726, 3933, 4094, 4446, 4806, 5073, 5382, 5681, 6141, 6669, 6942, 7209, 7866, 8073, 10146, 10413, 11362, 11799, 12282, 13338, 14418, 15219, 16146, 17043, 18423, 20007, 20826, 21983, 23598, 24219, 26611, 30438, 31239, 34086, 35397, 36846, 38893, 40014, 43966, 45657, 48438, 51129, 53222, 55269, 62478, 65949, 70794, 77786, 79833, 91314, 93717, 102258, 110538, 116679, 131898, 136971, 153387, 159666, 165807, 187434, 197847, 233358, 239499, 273942, 306774, 331614, 350037, 395694, 460161, 478998, 505609, 593541, 700074, 718497, 920322, 1011218, 1050111, 1187082, 1436994, 1516827, 1780623, 2100222, 2155491, 3033654, 3150333, 3561246, 4310982, 4550481, 6300666, 9100962, 13651443, 27302886, 40954329, 81908658]

約数ペア:

[(1, 81908658), (2, 40954329), (3, 27302886), (6, 13651443), (9, 9100962), (13, 6300666), (18, 4550481), (19, 4310982), (23, 3561246), (26, 3150333), (27, 3033654), (38, 2155491), (39, 2100222), (46, 1780623), (54, 1516827), (57, 1436994), (69, 1187082), (78, 1050111), (81, 1011218), (89, 920322), (114, 718497), (117, 700074), (138, 593541), (162, 505609), (171, 478998), (178, 460161), (207, 395694), (234, 350037), (247, 331614), (267, 306774), (299, 273942), (342, 239499), (351, 233358), (414, 197847), (437, 187434), (494, 165807), (513, 159666), (534, 153387), (598, 136971), (621, 131898), (702, 116679), (741, 110538), (801, 102258), (874, 93717), (897, 91314), (1026, 79833), (1053, 77786), (1157, 70794), (1242, 65949), (1311, 62478), (1482, 55269), (1539, 53222), (1602, 51129), (1691, 48438), (1794, 45657), (1863, 43966), (2047, 40014), (2106, 38893), (2223, 36846), (2314, 35397), (2403, 34086), (2622, 31239), (2691, 30438), (3078, 26611), (3382, 24219), (3471, 23598), (3726, 21983), (3933, 20826), (4094, 20007), (4446, 18423), (4806, 17043), (5073, 16146), (5382, 15219), (5681, 14418), (6141, 13338), (6669, 12282), (6942, 11799), (7209, 11362), (7866, 10413), (8073, 10146)]