78228540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:460

約数の個数: 144

約数和(自身を含む): 258856416

約数和(自身を除く): 180627876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 101, 117, 130, 156, 180, 195, 202, 234, 260, 303, 331, 390, 404, 468, 505, 585, 606, 662, 780, 909, 993, 1010, 1170, 1212, 1313, 1324, 1515, 1655, 1818, 1986, 2020, 2340, 2626, 2979, 3030, 3310, 3636, 3939, 3972, 4303, 4545, 4965, 5252, 5958, 6060, 6565, 6620, 7878, 8606, 9090, 9930, 11817, 11916, 12909, 13130, 14895, 15756, 17212, 18180, 19695, 19860, 21515, 23634, 25818, 26260, 29790, 33431, 38727, 39390, 43030, 47268, 51636, 59085, 59580, 64545, 66862, 77454, 78780, 86060, 100293, 118170, 129090, 133724, 154908, 167155, 193635, 200586, 236340, 258180, 300879, 334310, 387270, 401172, 434603, 501465, 601758, 668620, 774540, 869206, 1002930, 1203516, 1303809, 1504395, 1738412, 2005860, 2173015, 2607618, 3008790, 3911427, 4346030, 5215236, 6017580, 6519045, 7822854, 8692060, 13038090, 15645708, 19557135, 26076180, 39114270, 78228540]

約数ペア:

[(1, 78228540), (2, 39114270), (3, 26076180), (4, 19557135), (5, 15645708), (6, 13038090), (9, 8692060), (10, 7822854), (12, 6519045), (13, 6017580), (15, 5215236), (18, 4346030), (20, 3911427), (26, 3008790), (30, 2607618), (36, 2173015), (39, 2005860), (45, 1738412), (52, 1504395), (60, 1303809), (65, 1203516), (78, 1002930), (90, 869206), (101, 774540), (117, 668620), (130, 601758), (156, 501465), (180, 434603), (195, 401172), (202, 387270), (234, 334310), (260, 300879), (303, 258180), (331, 236340), (390, 200586), (404, 193635), (468, 167155), (505, 154908), (585, 133724), (606, 129090), (662, 118170), (780, 100293), (909, 86060), (993, 78780), (1010, 77454), (1170, 66862), (1212, 64545), (1313, 59580), (1324, 59085), (1515, 51636), (1655, 47268), (1818, 43030), (1986, 39390), (2020, 38727), (2340, 33431), (2626, 29790), (2979, 26260), (3030, 25818), (3310, 23634), (3636, 21515), (3939, 19860), (3972, 19695), (4303, 18180), (4545, 17212), (4965, 15756), (5252, 14895), (5958, 13130), (6060, 12909), (6565, 11916), (6620, 11817), (7878, 9930), (8606, 9090)]