81641376

素因数分解:

$2^5\times 3^2\times {\mathrm{67}}^1\times {\mathrm{4231}}^1$

素因数の和:4314

約数の個数: 72

約数和(自身を含む): 235688544

約数和(自身を除く): 154047168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 67, 72, 96, 134, 144, 201, 268, 288, 402, 536, 603, 804, 1072, 1206, 1608, 2144, 2412, 3216, 4231, 4824, 6432, 8462, 9648, 12693, 16924, 19296, 25386, 33848, 38079, 50772, 67696, 76158, 101544, 135392, 152316, 203088, 283477, 304632, 406176, 566954, 609264, 850431, 1133908, 1218528, 1700862, 2267816, 2551293, 3401724, 4535632, 5102586, 6803448, 9071264, 10205172, 13606896, 20410344, 27213792, 40820688, 81641376]

約数ペア:

[(1, 81641376), (2, 40820688), (3, 27213792), (4, 20410344), (6, 13606896), (8, 10205172), (9, 9071264), (12, 6803448), (16, 5102586), (18, 4535632), (24, 3401724), (32, 2551293), (36, 2267816), (48, 1700862), (67, 1218528), (72, 1133908), (96, 850431), (134, 609264), (144, 566954), (201, 406176), (268, 304632), (288, 283477), (402, 203088), (536, 152316), (603, 135392), (804, 101544), (1072, 76158), (1206, 67696), (1608, 50772), (2144, 38079), (2412, 33848), (3216, 25386), (4231, 19296), (4824, 16924), (6432, 12693), (8462, 9648)]