81014780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1697}}^1$

素因数の和:1755

約数の個数: 96

約数和(自身を含む): 219082752

約数和(自身を除く): 138067972

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 682, 770, 868, 1085, 1364, 1540, 1697, 1705, 2170, 2387, 3394, 3410, 4340, 4774, 6788, 6820, 8485, 9548, 11879, 11935, 16970, 18667, 23758, 23870, 33940, 37334, 47516, 47740, 52607, 59395, 74668, 93335, 105214, 118790, 130669, 186670, 210428, 237580, 261338, 263035, 368249, 373340, 522676, 526070, 578677, 653345, 736498, 1052140, 1157354, 1306690, 1472996, 1841245, 2314708, 2613380, 2893385, 3682490, 4050739, 5786770, 7364980, 8101478, 11573540, 16202956, 20253695, 40507390, 81014780]

約数ペア:

[(1, 81014780), (2, 40507390), (4, 20253695), (5, 16202956), (7, 11573540), (10, 8101478), (11, 7364980), (14, 5786770), (20, 4050739), (22, 3682490), (28, 2893385), (31, 2613380), (35, 2314708), (44, 1841245), (55, 1472996), (62, 1306690), (70, 1157354), (77, 1052140), (110, 736498), (124, 653345), (140, 578677), (154, 526070), (155, 522676), (217, 373340), (220, 368249), (308, 263035), (310, 261338), (341, 237580), (385, 210428), (434, 186670), (620, 130669), (682, 118790), (770, 105214), (868, 93335), (1085, 74668), (1364, 59395), (1540, 52607), (1697, 47740), (1705, 47516), (2170, 37334), (2387, 33940), (3394, 23870), (3410, 23758), (4340, 18667), (4774, 16970), (6788, 11935), (6820, 11879), (8485, 9548)]