20646990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2521}}^1$

素因数の和:2554

約数の個数: 96

約数和(自身を含む): 66096576

約数和(自身を除く): 45449586

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2521, 2730, 4095, 5042, 7563, 8190, 12605, 15126, 17647, 22689, 25210, 32773, 35294, 37815, 45378, 52941, 65546, 75630, 88235, 98319, 105882, 113445, 158823, 163865, 176470, 196638, 226890, 229411, 264705, 294957, 317646, 327730, 458822, 491595, 529410, 589914, 688233, 794115, 983190, 1147055, 1376466, 1474785, 1588230, 2064699, 2294110, 2949570, 3441165, 4129398, 6882330, 10323495, 20646990]

約数ペア:

[(1, 20646990), (2, 10323495), (3, 6882330), (5, 4129398), (6, 3441165), (7, 2949570), (9, 2294110), (10, 2064699), (13, 1588230), (14, 1474785), (15, 1376466), (18, 1147055), (21, 983190), (26, 794115), (30, 688233), (35, 589914), (39, 529410), (42, 491595), (45, 458822), (63, 327730), (65, 317646), (70, 294957), (78, 264705), (90, 229411), (91, 226890), (105, 196638), (117, 176470), (126, 163865), (130, 158823), (182, 113445), (195, 105882), (210, 98319), (234, 88235), (273, 75630), (315, 65546), (390, 52941), (455, 45378), (546, 37815), (585, 35294), (630, 32773), (819, 25210), (910, 22689), (1170, 17647), (1365, 15126), (1638, 12605), (2521, 8190), (2730, 7563), (4095, 5042)]