218640980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{575371}}^1$

素因数の和:575399

約数の個数: 24

約数和(自身を含む): 483312480

約数和(自身を除く): 264671500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 575371, 1150742, 2301484, 2876855, 5753710, 10932049, 11507420, 21864098, 43728196, 54660245, 109320490, 218640980]

約数ペア:

[(1, 218640980), (2, 109320490), (4, 54660245), (5, 43728196), (10, 21864098), (19, 11507420), (20, 10932049), (38, 5753710), (76, 2876855), (95, 2301484), (190, 1150742), (380, 575371)]