399777720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{144847}}^1$

素因数の和:144884

約数の個数: 64

約数和(自身を含む): 1251486720

約数和(自身を除く): 851709000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 144847, 289694, 434541, 579388, 724235, 869082, 1158776, 1448470, 1738164, 2172705, 2896940, 3331481, 3476328, 4345410, 5793880, 6662962, 8690820, 9994443, 13325924, 16657405, 17381640, 19988886, 26651848, 33314810, 39977772, 49972215, 66629620, 79955544, 99944430, 133259240, 199888860, 399777720]

約数ペア:

[(1, 399777720), (2, 199888860), (3, 133259240), (4, 99944430), (5, 79955544), (6, 66629620), (8, 49972215), (10, 39977772), (12, 33314810), (15, 26651848), (20, 19988886), (23, 17381640), (24, 16657405), (30, 13325924), (40, 9994443), (46, 8690820), (60, 6662962), (69, 5793880), (92, 4345410), (115, 3476328), (120, 3331481), (138, 2896940), (184, 2172705), (230, 1738164), (276, 1448470), (345, 1158776), (460, 869082), (552, 724235), (690, 579388), (920, 434541), (1380, 289694), (2760, 144847)]