20062980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15923}}^1$

素因数の和:15945

約数の個数: 72

約数和(自身を含む): 69556032

約数和(自身を除く): 49493052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15923, 31846, 47769, 63692, 79615, 95538, 111461, 143307, 159230, 191076, 222922, 238845, 286614, 318460, 334383, 445844, 477690, 557305, 573228, 668766, 716535, 955380, 1003149, 1114610, 1337532, 1433070, 1671915, 2006298, 2229220, 2866140, 3343830, 4012596, 5015745, 6687660, 10031490, 20062980]

約数ペア:

[(1, 20062980), (2, 10031490), (3, 6687660), (4, 5015745), (5, 4012596), (6, 3343830), (7, 2866140), (9, 2229220), (10, 2006298), (12, 1671915), (14, 1433070), (15, 1337532), (18, 1114610), (20, 1003149), (21, 955380), (28, 716535), (30, 668766), (35, 573228), (36, 557305), (42, 477690), (45, 445844), (60, 334383), (63, 318460), (70, 286614), (84, 238845), (90, 222922), (105, 191076), (126, 159230), (140, 143307), (180, 111461), (210, 95538), (252, 79615), (315, 63692), (420, 47769), (630, 31846), (1260, 15923)]