72120640

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 112

約数和(自身を含む): 184343040

約数和(自身を除く): 112222400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 41, 46, 64, 80, 82, 92, 115, 160, 164, 184, 205, 230, 239, 320, 328, 368, 410, 460, 478, 656, 736, 820, 920, 943, 956, 1195, 1312, 1472, 1640, 1840, 1886, 1912, 2390, 2624, 3280, 3680, 3772, 3824, 4715, 4780, 5497, 6560, 7360, 7544, 7648, 9430, 9560, 9799, 10994, 13120, 15088, 15296, 18860, 19120, 19598, 21988, 27485, 30176, 37720, 38240, 39196, 43976, 48995, 54970, 60352, 75440, 76480, 78392, 87952, 97990, 109940, 150880, 156784, 175904, 195980, 219880, 225377, 301760, 313568, 351808, 391960, 439760, 450754, 627136, 783920, 879520, 901508, 1126885, 1567840, 1759040, 1803016, 2253770, 3135680, 3606032, 4507540, 7212064, 9015080, 14424128, 18030160, 36060320, 72120640]

約数ペア:

[(1, 72120640), (2, 36060320), (4, 18030160), (5, 14424128), (8, 9015080), (10, 7212064), (16, 4507540), (20, 3606032), (23, 3135680), (32, 2253770), (40, 1803016), (41, 1759040), (46, 1567840), (64, 1126885), (80, 901508), (82, 879520), (92, 783920), (115, 627136), (160, 450754), (164, 439760), (184, 391960), (205, 351808), (230, 313568), (239, 301760), (320, 225377), (328, 219880), (368, 195980), (410, 175904), (460, 156784), (478, 150880), (656, 109940), (736, 97990), (820, 87952), (920, 78392), (943, 76480), (956, 75440), (1195, 60352), (1312, 54970), (1472, 48995), (1640, 43976), (1840, 39196), (1886, 38240), (1912, 37720), (2390, 30176), (2624, 27485), (3280, 21988), (3680, 19598), (3772, 19120), (3824, 18860), (4715, 15296), (4780, 15088), (5497, 13120), (6560, 10994), (7360, 9799), (7544, 9560), (7648, 9430)]