31146880

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1187}}^1$

素因数の和:1247

約数の個数: 64

約数和(自身を含む): 76340880

約数和(自身を除く): 45194000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1187, 1312, 1640, 2374, 2624, 3280, 4748, 5248, 5935, 6560, 9496, 11870, 13120, 18992, 23740, 26240, 37984, 47480, 48667, 75968, 94960, 97334, 151936, 189920, 194668, 243335, 379840, 389336, 486670, 759680, 778672, 973340, 1557344, 1946680, 3114688, 3893360, 6229376, 7786720, 15573440, 31146880]

約数ペア:

[(1, 31146880), (2, 15573440), (4, 7786720), (5, 6229376), (8, 3893360), (10, 3114688), (16, 1946680), (20, 1557344), (32, 973340), (40, 778672), (41, 759680), (64, 486670), (80, 389336), (82, 379840), (128, 243335), (160, 194668), (164, 189920), (205, 151936), (320, 97334), (328, 94960), (410, 75968), (640, 48667), (656, 47480), (820, 37984), (1187, 26240), (1312, 23740), (1640, 18992), (2374, 13120), (2624, 11870), (3280, 9496), (4748, 6560), (5248, 5935)]