80720970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{739}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 212267520

約数和(自身を除く): 131546550

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 331, 662, 739, 993, 1478, 1655, 1986, 2217, 3310, 3641, 3695, 4434, 4965, 7282, 7390, 8129, 9930, 10923, 11085, 16258, 18205, 21846, 22170, 24387, 36410, 40645, 48774, 54615, 81290, 109230, 121935, 243870, 244609, 489218, 733827, 1223045, 1467654, 2446090, 2690699, 3669135, 5381398, 7338270, 8072097, 13453495, 16144194, 26906990, 40360485, 80720970]

約数ペア:

[(1, 80720970), (2, 40360485), (3, 26906990), (5, 16144194), (6, 13453495), (10, 8072097), (11, 7338270), (15, 5381398), (22, 3669135), (30, 2690699), (33, 2446090), (55, 1467654), (66, 1223045), (110, 733827), (165, 489218), (330, 244609), (331, 243870), (662, 121935), (739, 109230), (993, 81290), (1478, 54615), (1655, 48774), (1986, 40645), (2217, 36410), (3310, 24387), (3641, 22170), (3695, 21846), (4434, 18205), (4965, 16258), (7282, 11085), (7390, 10923), (8129, 9930)]