81769380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1609}}^1$

素因数の和:1650

約数の個数: 144

約数和(自身を含む): 287790720

約数和(自身を除く): 206021340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 660, 726, 770, 847, 924, 1155, 1210, 1452, 1540, 1609, 1694, 1815, 2310, 2420, 2541, 3218, 3388, 3630, 4235, 4620, 4827, 5082, 6436, 7260, 8045, 8470, 9654, 10164, 11263, 12705, 16090, 16940, 17699, 19308, 22526, 24135, 25410, 32180, 33789, 35398, 45052, 48270, 50820, 53097, 56315, 67578, 70796, 88495, 96540, 106194, 112630, 123893, 135156, 168945, 176990, 194689, 212388, 225260, 247786, 265485, 337890, 353980, 371679, 389378, 495572, 530970, 584067, 619465, 675780, 743358, 778756, 973445, 1061940, 1168134, 1238930, 1362823, 1486716, 1858395, 1946890, 2336268, 2477860, 2725646, 2920335, 3716790, 3893780, 4088469, 5451292, 5840670, 6814115, 7433580, 8176938, 11681340, 13628230, 16353876, 20442345, 27256460, 40884690, 81769380]

約数ペア:

[(1, 81769380), (2, 40884690), (3, 27256460), (4, 20442345), (5, 16353876), (6, 13628230), (7, 11681340), (10, 8176938), (11, 7433580), (12, 6814115), (14, 5840670), (15, 5451292), (20, 4088469), (21, 3893780), (22, 3716790), (28, 2920335), (30, 2725646), (33, 2477860), (35, 2336268), (42, 1946890), (44, 1858395), (55, 1486716), (60, 1362823), (66, 1238930), (70, 1168134), (77, 1061940), (84, 973445), (105, 778756), (110, 743358), (121, 675780), (132, 619465), (140, 584067), (154, 530970), (165, 495572), (210, 389378), (220, 371679), (231, 353980), (242, 337890), (308, 265485), (330, 247786), (363, 225260), (385, 212388), (420, 194689), (462, 176990), (484, 168945), (605, 135156), (660, 123893), (726, 112630), (770, 106194), (847, 96540), (924, 88495), (1155, 70796), (1210, 67578), (1452, 56315), (1540, 53097), (1609, 50820), (1694, 48270), (1815, 45052), (2310, 35398), (2420, 33789), (2541, 32180), (3218, 25410), (3388, 24135), (3630, 22526), (4235, 19308), (4620, 17699), (4827, 16940), (5082, 16090), (6436, 12705), (7260, 11263), (8045, 10164), (8470, 9654)]