1689236420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{31981}}^1$

素因数の和:32148

約数の個数: 48

約数和(自身を含む): 3761083200

約数和(自身を除く): 2071846780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 2641, 2780, 5282, 10564, 13205, 26410, 31981, 52820, 63962, 127924, 159905, 319810, 607639, 639620, 1215278, 2430556, 3038195, 4445359, 6076390, 8890718, 12152780, 17781436, 22226795, 44453590, 84461821, 88907180, 168923642, 337847284, 422309105, 844618210, 1689236420]

約数ペア:

[(1, 1689236420), (2, 844618210), (4, 422309105), (5, 337847284), (10, 168923642), (19, 88907180), (20, 84461821), (38, 44453590), (76, 22226795), (95, 17781436), (139, 12152780), (190, 8890718), (278, 6076390), (380, 4445359), (556, 3038195), (695, 2430556), (1390, 1215278), (2641, 639620), (2780, 607639), (5282, 319810), (10564, 159905), (13205, 127924), (26410, 63962), (31981, 52820)]