81425988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 253169280

約数和(自身を除く): 171743292

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 83, 84, 102, 119, 126, 153, 166, 204, 229, 238, 249, 252, 306, 332, 357, 458, 476, 498, 581, 612, 687, 714, 747, 916, 996, 1071, 1162, 1374, 1411, 1428, 1494, 1603, 1743, 2061, 2142, 2324, 2748, 2822, 2988, 3206, 3486, 3893, 4122, 4233, 4284, 4809, 5229, 5644, 6412, 6972, 7786, 8244, 8466, 9618, 9877, 10458, 11679, 12699, 14427, 15572, 16932, 19007, 19236, 19754, 20916, 23358, 25398, 27251, 28854, 29631, 35037, 38014, 39508, 46716, 50796, 54502, 57021, 57708, 59262, 70074, 76028, 81753, 88893, 109004, 114042, 118524, 133049, 140148, 163506, 171063, 177786, 228084, 245259, 266098, 323119, 327012, 342126, 355572, 399147, 490518, 532196, 646238, 684252, 798294, 969357, 981036, 1197441, 1292476, 1596588, 1938714, 2261833, 2394882, 2908071, 3877428, 4523666, 4789764, 5816142, 6785499, 9047332, 11632284, 13570998, 20356497, 27141996, 40712994, 81425988]

約数ペア:

[(1, 81425988), (2, 40712994), (3, 27141996), (4, 20356497), (6, 13570998), (7, 11632284), (9, 9047332), (12, 6785499), (14, 5816142), (17, 4789764), (18, 4523666), (21, 3877428), (28, 2908071), (34, 2394882), (36, 2261833), (42, 1938714), (51, 1596588), (63, 1292476), (68, 1197441), (83, 981036), (84, 969357), (102, 798294), (119, 684252), (126, 646238), (153, 532196), (166, 490518), (204, 399147), (229, 355572), (238, 342126), (249, 327012), (252, 323119), (306, 266098), (332, 245259), (357, 228084), (458, 177786), (476, 171063), (498, 163506), (581, 140148), (612, 133049), (687, 118524), (714, 114042), (747, 109004), (916, 88893), (996, 81753), (1071, 76028), (1162, 70074), (1374, 59262), (1411, 57708), (1428, 57021), (1494, 54502), (1603, 50796), (1743, 46716), (2061, 39508), (2142, 38014), (2324, 35037), (2748, 29631), (2822, 28854), (2988, 27251), (3206, 25398), (3486, 23358), (3893, 20916), (4122, 19754), (4233, 19236), (4284, 19007), (4809, 16932), (5229, 15572), (5644, 14427), (6412, 12699), (6972, 11679), (7786, 10458), (8244, 9877), (8466, 9618)]