201229990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 425005056

約数和(自身を除く): 223775066

約数列:

[1, 2, 5, 10, 13, 23, 26, 31, 46, 62, 65, 115, 130, 155, 167, 169, 230, 299, 310, 334, 338, 403, 598, 713, 806, 835, 845, 1426, 1495, 1670, 1690, 2015, 2171, 2990, 3565, 3841, 3887, 4030, 4342, 5177, 5239, 7130, 7682, 7774, 9269, 10354, 10478, 10855, 18538, 19205, 19435, 21710, 25885, 26195, 28223, 38410, 38870, 46345, 49933, 51770, 52390, 56446, 67301, 92690, 99866, 119071, 120497, 134602, 141115, 238142, 240994, 249665, 282230, 336505, 499330, 595355, 602485, 649129, 673010, 874913, 1190710, 1204970, 1298258, 1547923, 1749826, 3095846, 3245645, 4374565, 6491290, 7739615, 8749130, 15479230, 20122999, 40245998, 100614995, 201229990]

約数ペア:

[(1, 201229990), (2, 100614995), (5, 40245998), (10, 20122999), (13, 15479230), (23, 8749130), (26, 7739615), (31, 6491290), (46, 4374565), (62, 3245645), (65, 3095846), (115, 1749826), (130, 1547923), (155, 1298258), (167, 1204970), (169, 1190710), (230, 874913), (299, 673010), (310, 649129), (334, 602485), (338, 595355), (403, 499330), (598, 336505), (713, 282230), (806, 249665), (835, 240994), (845, 238142), (1426, 141115), (1495, 134602), (1670, 120497), (1690, 119071), (2015, 99866), (2171, 92690), (2990, 67301), (3565, 56446), (3841, 52390), (3887, 51770), (4030, 49933), (4342, 46345), (5177, 38870), (5239, 38410), (7130, 28223), (7682, 26195), (7774, 25885), (9269, 21710), (10354, 19435), (10478, 19205), (10855, 18538)]