20869030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 31385690

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 19, 26, 34, 35, 38, 65, 70, 71, 85, 91, 95, 119, 130, 133, 142, 170, 182, 190, 221, 238, 247, 266, 323, 355, 442, 455, 494, 497, 595, 646, 665, 710, 910, 923, 994, 1105, 1190, 1207, 1235, 1330, 1349, 1547, 1615, 1729, 1846, 2210, 2261, 2414, 2470, 2485, 2698, 3094, 3230, 3458, 4199, 4522, 4615, 4970, 6035, 6461, 6745, 7735, 8398, 8449, 8645, 9230, 9443, 11305, 12070, 12922, 13490, 15470, 15691, 16898, 17290, 17537, 18886, 20995, 22610, 22933, 29393, 31382, 32305, 35074, 41990, 42245, 45866, 47215, 58786, 64610, 78455, 84490, 87685, 94430, 109837, 114665, 122759, 146965, 156910, 160531, 175370, 219674, 229330, 245518, 293930, 298129, 321062, 549185, 596258, 613795, 802655, 1098370, 1227590, 1490645, 1605310, 2086903, 2981290, 4173806, 10434515, 20869030]

約数ペア:

[(1, 20869030), (2, 10434515), (5, 4173806), (7, 2981290), (10, 2086903), (13, 1605310), (14, 1490645), (17, 1227590), (19, 1098370), (26, 802655), (34, 613795), (35, 596258), (38, 549185), (65, 321062), (70, 298129), (71, 293930), (85, 245518), (91, 229330), (95, 219674), (119, 175370), (130, 160531), (133, 156910), (142, 146965), (170, 122759), (182, 114665), (190, 109837), (221, 94430), (238, 87685), (247, 84490), (266, 78455), (323, 64610), (355, 58786), (442, 47215), (455, 45866), (494, 42245), (497, 41990), (595, 35074), (646, 32305), (665, 31382), (710, 29393), (910, 22933), (923, 22610), (994, 20995), (1105, 18886), (1190, 17537), (1207, 17290), (1235, 16898), (1330, 15691), (1349, 15470), (1547, 13490), (1615, 12922), (1729, 12070), (1846, 11305), (2210, 9443), (2261, 9230), (2414, 8645), (2470, 8449), (2485, 8398), (2698, 7735), (3094, 6745), (3230, 6461), (3458, 6035), (4199, 4970), (4522, 4615)]