213380545

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 327335040

約数和(自身を除く): 113954495

約数列:

[1, 5, 7, 19, 23, 35, 49, 95, 115, 133, 161, 245, 437, 665, 805, 931, 1127, 1993, 2185, 3059, 4655, 5635, 9965, 13951, 15295, 21413, 37867, 45839, 69755, 97657, 107065, 189335, 229195, 265069, 320873, 488285, 870941, 1325345, 1604365, 1855483, 2246111, 4354705, 6096587, 9277415, 11230555, 30482935, 42676109, 213380545]

約数ペア:

[(1, 213380545), (5, 42676109), (7, 30482935), (19, 11230555), (23, 9277415), (35, 6096587), (49, 4354705), (95, 2246111), (115, 1855483), (133, 1604365), (161, 1325345), (245, 870941), (437, 488285), (665, 320873), (805, 265069), (931, 229195), (1127, 189335), (1993, 107065), (2185, 97657), (3059, 69755), (4655, 45839), (5635, 37867), (9965, 21413), (13951, 15295)]