20847190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 26891690

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 434, 455, 739, 806, 910, 1085, 1478, 2015, 2170, 2821, 3695, 4030, 5173, 5642, 7390, 9607, 10346, 14105, 19214, 22909, 25865, 28210, 45818, 48035, 51730, 67249, 96070, 114545, 134498, 160363, 229090, 297817, 320726, 336245, 595634, 672490, 801815, 1489085, 1603630, 2084719, 2978170, 4169438, 10423595, 20847190]

約数ペア:

[(1, 20847190), (2, 10423595), (5, 4169438), (7, 2978170), (10, 2084719), (13, 1603630), (14, 1489085), (26, 801815), (31, 672490), (35, 595634), (62, 336245), (65, 320726), (70, 297817), (91, 229090), (130, 160363), (155, 134498), (182, 114545), (217, 96070), (310, 67249), (403, 51730), (434, 48035), (455, 45818), (739, 28210), (806, 25865), (910, 22909), (1085, 19214), (1478, 14105), (2015, 10346), (2170, 9607), (2821, 7390), (3695, 5642), (4030, 5173)]