78449220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:890

約数の個数: 144

約数和(自身を含む): 260402688

約数和(自身を除く): 181953468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 204, 255, 279, 306, 310, 340, 372, 465, 510, 527, 558, 612, 620, 765, 827, 930, 1020, 1054, 1116, 1395, 1530, 1581, 1654, 1860, 2108, 2481, 2635, 2790, 3060, 3162, 3308, 4135, 4743, 4962, 5270, 5580, 6324, 7443, 7905, 8270, 9486, 9924, 10540, 12405, 14059, 14886, 15810, 16540, 18972, 23715, 24810, 25637, 28118, 29772, 31620, 37215, 42177, 47430, 49620, 51274, 56236, 70295, 74430, 76911, 84354, 94860, 102548, 126531, 128185, 140590, 148860, 153822, 168708, 210885, 230733, 253062, 256370, 281180, 307644, 384555, 421770, 435829, 461466, 506124, 512740, 632655, 769110, 843540, 871658, 922932, 1153665, 1265310, 1307487, 1538220, 1743316, 2179145, 2307330, 2530620, 2614974, 3922461, 4358290, 4614660, 5229948, 6537435, 7844922, 8716580, 13074870, 15689844, 19612305, 26149740, 39224610, 78449220]

約数ペア:

[(1, 78449220), (2, 39224610), (3, 26149740), (4, 19612305), (5, 15689844), (6, 13074870), (9, 8716580), (10, 7844922), (12, 6537435), (15, 5229948), (17, 4614660), (18, 4358290), (20, 3922461), (30, 2614974), (31, 2530620), (34, 2307330), (36, 2179145), (45, 1743316), (51, 1538220), (60, 1307487), (62, 1265310), (68, 1153665), (85, 922932), (90, 871658), (93, 843540), (102, 769110), (124, 632655), (153, 512740), (155, 506124), (170, 461466), (180, 435829), (186, 421770), (204, 384555), (255, 307644), (279, 281180), (306, 256370), (310, 253062), (340, 230733), (372, 210885), (465, 168708), (510, 153822), (527, 148860), (558, 140590), (612, 128185), (620, 126531), (765, 102548), (827, 94860), (930, 84354), (1020, 76911), (1054, 74430), (1116, 70295), (1395, 56236), (1530, 51274), (1581, 49620), (1654, 47430), (1860, 42177), (2108, 37215), (2481, 31620), (2635, 29772), (2790, 28118), (3060, 25637), (3162, 24810), (3308, 23715), (4135, 18972), (4743, 16540), (4962, 15810), (5270, 14886), (5580, 14059), (6324, 12405), (7443, 10540), (7905, 9924), (8270, 9486)]