20897340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:851

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 43453380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 38, 46, 57, 60, 69, 76, 92, 95, 114, 115, 138, 190, 228, 230, 276, 285, 345, 380, 437, 460, 570, 690, 797, 874, 1140, 1311, 1380, 1594, 1748, 2185, 2391, 2622, 3188, 3985, 4370, 4782, 5244, 6555, 7970, 8740, 9564, 11955, 13110, 15143, 15940, 18331, 23910, 26220, 30286, 36662, 45429, 47820, 54993, 60572, 73324, 75715, 90858, 91655, 109986, 151430, 181716, 183310, 219972, 227145, 274965, 302860, 348289, 366620, 454290, 549930, 696578, 908580, 1044867, 1099860, 1393156, 1741445, 2089734, 3482890, 4179468, 5224335, 6965780, 10448670, 20897340]

約数ペア:

[(1, 20897340), (2, 10448670), (3, 6965780), (4, 5224335), (5, 4179468), (6, 3482890), (10, 2089734), (12, 1741445), (15, 1393156), (19, 1099860), (20, 1044867), (23, 908580), (30, 696578), (38, 549930), (46, 454290), (57, 366620), (60, 348289), (69, 302860), (76, 274965), (92, 227145), (95, 219972), (114, 183310), (115, 181716), (138, 151430), (190, 109986), (228, 91655), (230, 90858), (276, 75715), (285, 73324), (345, 60572), (380, 54993), (437, 47820), (460, 45429), (570, 36662), (690, 30286), (797, 26220), (874, 23910), (1140, 18331), (1311, 15940), (1380, 15143), (1594, 13110), (1748, 11955), (2185, 9564), (2391, 8740), (2622, 7970), (3188, 6555), (3985, 5244), (4370, 4782)]