388431720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{787}}^1$

素因数の和:1264

約数の個数: 128

約数和(自身を含む): 1299254400

約数和(自身を除く): 910822680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 457, 540, 787, 914, 1080, 1371, 1574, 1828, 2285, 2361, 2742, 3148, 3656, 3935, 4113, 4570, 4722, 5484, 6296, 6855, 7083, 7870, 8226, 9140, 9444, 10968, 11805, 12339, 13710, 14166, 15740, 16452, 18280, 18888, 20565, 21249, 23610, 24678, 27420, 28332, 31480, 32904, 35415, 41130, 42498, 47220, 49356, 54840, 56664, 61695, 70830, 82260, 84996, 94440, 98712, 106245, 123390, 141660, 164520, 169992, 212490, 246780, 283320, 359659, 424980, 493560, 719318, 849960, 1078977, 1438636, 1798295, 2157954, 2877272, 3236931, 3596590, 4315908, 5394885, 6473862, 7193180, 8631816, 9710793, 10789770, 12947724, 14386360, 16184655, 19421586, 21579540, 25895448, 32369310, 38843172, 43159080, 48553965, 64738620, 77686344, 97107930, 129477240, 194215860, 388431720]

約数ペア:

[(1, 388431720), (2, 194215860), (3, 129477240), (4, 97107930), (5, 77686344), (6, 64738620), (8, 48553965), (9, 43159080), (10, 38843172), (12, 32369310), (15, 25895448), (18, 21579540), (20, 19421586), (24, 16184655), (27, 14386360), (30, 12947724), (36, 10789770), (40, 9710793), (45, 8631816), (54, 7193180), (60, 6473862), (72, 5394885), (90, 4315908), (108, 3596590), (120, 3236931), (135, 2877272), (180, 2157954), (216, 1798295), (270, 1438636), (360, 1078977), (457, 849960), (540, 719318), (787, 493560), (914, 424980), (1080, 359659), (1371, 283320), (1574, 246780), (1828, 212490), (2285, 169992), (2361, 164520), (2742, 141660), (3148, 123390), (3656, 106245), (3935, 98712), (4113, 94440), (4570, 84996), (4722, 82260), (5484, 70830), (6296, 61695), (6855, 56664), (7083, 54840), (7870, 49356), (8226, 47220), (9140, 42498), (9444, 41130), (10968, 35415), (11805, 32904), (12339, 31480), (13710, 28332), (14166, 27420), (15740, 24678), (16452, 23610), (18280, 21249), (18888, 20565)]