215253640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{10531}}^1$

素因数の和:10622

約数の個数: 64

約数和(自身を含む): 561144960

約数和(自身を除く): 345891320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 10531, 20440, 21062, 42124, 52655, 73717, 84248, 105310, 147434, 210620, 294868, 368585, 421240, 589736, 737170, 768763, 1474340, 1537526, 2948680, 3075052, 3843815, 5381341, 6150104, 7687630, 10762682, 15375260, 21525364, 26906705, 30750520, 43050728, 53813410, 107626820, 215253640]

約数ペア:

[(1, 215253640), (2, 107626820), (4, 53813410), (5, 43050728), (7, 30750520), (8, 26906705), (10, 21525364), (14, 15375260), (20, 10762682), (28, 7687630), (35, 6150104), (40, 5381341), (56, 3843815), (70, 3075052), (73, 2948680), (140, 1537526), (146, 1474340), (280, 768763), (292, 737170), (365, 589736), (511, 421240), (584, 368585), (730, 294868), (1022, 210620), (1460, 147434), (2044, 105310), (2555, 84248), (2920, 73717), (4088, 52655), (5110, 42124), (10220, 21062), (10531, 20440)]