31681008

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 94089216

約数和(自身を除く): 62408208

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 47, 48, 62, 72, 93, 94, 124, 141, 144, 151, 186, 188, 248, 279, 282, 302, 372, 376, 423, 453, 496, 558, 564, 604, 744, 752, 846, 906, 1116, 1128, 1208, 1359, 1457, 1488, 1692, 1812, 2232, 2256, 2416, 2718, 2914, 3384, 3624, 4371, 4464, 4681, 5436, 5828, 6768, 7097, 7248, 8742, 9362, 10872, 11656, 13113, 14043, 14194, 17484, 18724, 21291, 21744, 23312, 26226, 28086, 28388, 34968, 37448, 42129, 42582, 52452, 56172, 56776, 63873, 69936, 74896, 84258, 85164, 104904, 112344, 113552, 127746, 168516, 170328, 209808, 220007, 224688, 255492, 337032, 340656, 440014, 510984, 660021, 674064, 880028, 1021968, 1320042, 1760056, 1980063, 2640084, 3520112, 3960126, 5280168, 7920252, 10560336, 15840504, 31681008]

約数ペア:

[(1, 31681008), (2, 15840504), (3, 10560336), (4, 7920252), (6, 5280168), (8, 3960126), (9, 3520112), (12, 2640084), (16, 1980063), (18, 1760056), (24, 1320042), (31, 1021968), (36, 880028), (47, 674064), (48, 660021), (62, 510984), (72, 440014), (93, 340656), (94, 337032), (124, 255492), (141, 224688), (144, 220007), (151, 209808), (186, 170328), (188, 168516), (248, 127746), (279, 113552), (282, 112344), (302, 104904), (372, 85164), (376, 84258), (423, 74896), (453, 69936), (496, 63873), (558, 56776), (564, 56172), (604, 52452), (744, 42582), (752, 42129), (846, 37448), (906, 34968), (1116, 28388), (1128, 28086), (1208, 26226), (1359, 23312), (1457, 21744), (1488, 21291), (1692, 18724), (1812, 17484), (2232, 14194), (2256, 14043), (2416, 13113), (2718, 11656), (2914, 10872), (3384, 9362), (3624, 8742), (4371, 7248), (4464, 7097), (4681, 6768), (5436, 5828)]