31991988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:637

約数の個数: 96

約数和(自身を含む): 92252160

約数和(自身を除く): 60260172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 29, 42, 46, 58, 69, 84, 87, 92, 116, 138, 161, 174, 203, 276, 322, 348, 406, 483, 571, 609, 644, 667, 812, 966, 1142, 1218, 1334, 1713, 1932, 2001, 2284, 2436, 2668, 3426, 3997, 4002, 4669, 6852, 7994, 8004, 9338, 11991, 13133, 14007, 15988, 16559, 18676, 23982, 26266, 28014, 33118, 39399, 47964, 49677, 52532, 56028, 66236, 78798, 91931, 99354, 115913, 157596, 183862, 198708, 231826, 275793, 347739, 367724, 380857, 463652, 551586, 695478, 761714, 1103172, 1142571, 1390956, 1523428, 2285142, 2665999, 4570284, 5331998, 7997997, 10663996, 15995994, 31991988]

約数ペア:

[(1, 31991988), (2, 15995994), (3, 10663996), (4, 7997997), (6, 5331998), (7, 4570284), (12, 2665999), (14, 2285142), (21, 1523428), (23, 1390956), (28, 1142571), (29, 1103172), (42, 761714), (46, 695478), (58, 551586), (69, 463652), (84, 380857), (87, 367724), (92, 347739), (116, 275793), (138, 231826), (161, 198708), (174, 183862), (203, 157596), (276, 115913), (322, 99354), (348, 91931), (406, 78798), (483, 66236), (571, 56028), (609, 52532), (644, 49677), (667, 47964), (812, 39399), (966, 33118), (1142, 28014), (1218, 26266), (1334, 23982), (1713, 18676), (1932, 16559), (2001, 15988), (2284, 14007), (2436, 13133), (2668, 11991), (3426, 9338), (3997, 8004), (4002, 7994), (4669, 6852)]