221285220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 680057280

約数和(自身を除く): 458772060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 139, 156, 157, 169, 195, 260, 278, 314, 338, 390, 417, 471, 507, 556, 628, 676, 695, 780, 785, 834, 845, 942, 1014, 1390, 1570, 1668, 1690, 1807, 1884, 2028, 2041, 2085, 2355, 2535, 2780, 3140, 3380, 3614, 4082, 4170, 4710, 5070, 5421, 6123, 7228, 8164, 8340, 9035, 9420, 10140, 10205, 10842, 12246, 18070, 20410, 21684, 21823, 23491, 24492, 26533, 27105, 30615, 36140, 40820, 43646, 46982, 53066, 54210, 61230, 65469, 70473, 79599, 87292, 93964, 106132, 108420, 109115, 117455, 122460, 130938, 132665, 140946, 159198, 218230, 234910, 261876, 265330, 281892, 283699, 318396, 327345, 352365, 397995, 436460, 469820, 530660, 567398, 654690, 704730, 795990, 851097, 1134796, 1309380, 1409460, 1418495, 1591980, 1702194, 2836990, 3404388, 3688087, 4255485, 5673980, 7376174, 8510970, 11064261, 14752348, 17021940, 18440435, 22128522, 36880870, 44257044, 55321305, 73761740, 110642610, 221285220]

約数ペア:

[(1, 221285220), (2, 110642610), (3, 73761740), (4, 55321305), (5, 44257044), (6, 36880870), (10, 22128522), (12, 18440435), (13, 17021940), (15, 14752348), (20, 11064261), (26, 8510970), (30, 7376174), (39, 5673980), (52, 4255485), (60, 3688087), (65, 3404388), (78, 2836990), (130, 1702194), (139, 1591980), (156, 1418495), (157, 1409460), (169, 1309380), (195, 1134796), (260, 851097), (278, 795990), (314, 704730), (338, 654690), (390, 567398), (417, 530660), (471, 469820), (507, 436460), (556, 397995), (628, 352365), (676, 327345), (695, 318396), (780, 283699), (785, 281892), (834, 265330), (845, 261876), (942, 234910), (1014, 218230), (1390, 159198), (1570, 140946), (1668, 132665), (1690, 130938), (1807, 122460), (1884, 117455), (2028, 109115), (2041, 108420), (2085, 106132), (2355, 93964), (2535, 87292), (2780, 79599), (3140, 70473), (3380, 65469), (3614, 61230), (4082, 54210), (4170, 53066), (4710, 46982), (5070, 43646), (5421, 40820), (6123, 36140), (7228, 30615), (8164, 27105), (8340, 26533), (9035, 24492), (9420, 23491), (10140, 21823), (10205, 21684), (10842, 20410), (12246, 18070)]