31662904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 128

約数和(自身を含む): 79994880

約数和(自身を除く): 48331976

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 31, 46, 52, 56, 61, 62, 91, 92, 104, 122, 124, 161, 182, 184, 217, 244, 248, 299, 322, 364, 403, 427, 434, 488, 598, 644, 713, 728, 793, 806, 854, 868, 1196, 1288, 1403, 1426, 1586, 1612, 1708, 1736, 1891, 2093, 2392, 2806, 2821, 2852, 3172, 3224, 3416, 3782, 4186, 4991, 5551, 5612, 5642, 5704, 6344, 7564, 8372, 9269, 9821, 9982, 11102, 11224, 11284, 13237, 15128, 16744, 18239, 18538, 19642, 19964, 22204, 22568, 24583, 26474, 36478, 37076, 39284, 39928, 43493, 44408, 49166, 52948, 64883, 72956, 74152, 78568, 86986, 98332, 105896, 127673, 129766, 145912, 172081, 173972, 196664, 255346, 259532, 304451, 344162, 347944, 510692, 519064, 565409, 608902, 688324, 1021384, 1130818, 1217804, 1376648, 2261636, 2435608, 3957863, 4523272, 7915726, 15831452, 31662904]

約数ペア:

[(1, 31662904), (2, 15831452), (4, 7915726), (7, 4523272), (8, 3957863), (13, 2435608), (14, 2261636), (23, 1376648), (26, 1217804), (28, 1130818), (31, 1021384), (46, 688324), (52, 608902), (56, 565409), (61, 519064), (62, 510692), (91, 347944), (92, 344162), (104, 304451), (122, 259532), (124, 255346), (161, 196664), (182, 173972), (184, 172081), (217, 145912), (244, 129766), (248, 127673), (299, 105896), (322, 98332), (364, 86986), (403, 78568), (427, 74152), (434, 72956), (488, 64883), (598, 52948), (644, 49166), (713, 44408), (728, 43493), (793, 39928), (806, 39284), (854, 37076), (868, 36478), (1196, 26474), (1288, 24583), (1403, 22568), (1426, 22204), (1586, 19964), (1612, 19642), (1708, 18538), (1736, 18239), (1891, 16744), (2093, 15128), (2392, 13237), (2806, 11284), (2821, 11224), (2852, 11102), (3172, 9982), (3224, 9821), (3416, 9269), (3782, 8372), (4186, 7564), (4991, 6344), (5551, 5704), (5612, 5642)]