81690570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69821}}^1$

素因数の和:69847

約数の個数: 48

約数和(自身を含む): 228736872

約数和(自身を除く): 147046302

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 69821, 139642, 209463, 349105, 418926, 628389, 698210, 907673, 1047315, 1256778, 1815346, 2094630, 2723019, 3141945, 4538365, 5446038, 6283890, 8169057, 9076730, 13615095, 16338114, 27230190, 40845285, 81690570]

約数ペア:

[(1, 81690570), (2, 40845285), (3, 27230190), (5, 16338114), (6, 13615095), (9, 9076730), (10, 8169057), (13, 6283890), (15, 5446038), (18, 4538365), (26, 3141945), (30, 2723019), (39, 2094630), (45, 1815346), (65, 1256778), (78, 1047315), (90, 907673), (117, 698210), (130, 628389), (195, 418926), (234, 349105), (390, 209463), (585, 139642), (1170, 69821)]