78445120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 112

約数和(自身を含む): 204185520

約数和(自身を除く): 125740400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 130, 160, 173, 208, 218, 260, 320, 346, 416, 436, 520, 545, 692, 832, 865, 872, 1040, 1090, 1384, 1417, 1730, 1744, 2080, 2180, 2249, 2768, 2834, 3460, 3488, 4160, 4360, 4498, 5536, 5668, 6920, 6976, 7085, 8720, 8996, 11072, 11245, 11336, 13840, 14170, 17440, 17992, 18857, 22490, 22672, 27680, 28340, 34880, 35984, 37714, 44980, 45344, 55360, 56680, 71968, 75428, 89960, 90688, 94285, 113360, 143936, 150856, 179920, 188570, 226720, 245141, 301712, 359840, 377140, 453440, 490282, 603424, 719680, 754280, 980564, 1206848, 1225705, 1508560, 1961128, 2451410, 3017120, 3922256, 4902820, 6034240, 7844512, 9805640, 15689024, 19611280, 39222560, 78445120]

約数ペア:

[(1, 78445120), (2, 39222560), (4, 19611280), (5, 15689024), (8, 9805640), (10, 7844512), (13, 6034240), (16, 4902820), (20, 3922256), (26, 3017120), (32, 2451410), (40, 1961128), (52, 1508560), (64, 1225705), (65, 1206848), (80, 980564), (104, 754280), (109, 719680), (130, 603424), (160, 490282), (173, 453440), (208, 377140), (218, 359840), (260, 301712), (320, 245141), (346, 226720), (416, 188570), (436, 179920), (520, 150856), (545, 143936), (692, 113360), (832, 94285), (865, 90688), (872, 89960), (1040, 75428), (1090, 71968), (1384, 56680), (1417, 55360), (1730, 45344), (1744, 44980), (2080, 37714), (2180, 35984), (2249, 34880), (2768, 28340), (2834, 27680), (3460, 22672), (3488, 22490), (4160, 18857), (4360, 17992), (4498, 17440), (5536, 14170), (5668, 13840), (6920, 11336), (6976, 11245), (7085, 11072), (8720, 8996)]