39978180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 144

約数和(自身を含む): 134866368

約数和(自身を除く): 94888188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 61, 66, 90, 99, 110, 122, 132, 165, 180, 183, 198, 220, 244, 305, 330, 331, 366, 396, 495, 549, 610, 660, 662, 671, 732, 915, 990, 993, 1098, 1220, 1324, 1342, 1655, 1830, 1980, 1986, 2013, 2196, 2684, 2745, 2979, 3310, 3355, 3641, 3660, 3972, 4026, 4965, 5490, 5958, 6039, 6620, 6710, 7282, 8052, 9930, 10065, 10923, 10980, 11916, 12078, 13420, 14564, 14895, 18205, 19860, 20130, 20191, 21846, 24156, 29790, 30195, 32769, 36410, 40260, 40382, 43692, 54615, 59580, 60390, 60573, 65538, 72820, 80764, 100955, 109230, 120780, 121146, 131076, 163845, 181719, 201910, 218460, 222101, 242292, 302865, 327690, 363438, 403820, 444202, 605730, 655380, 666303, 726876, 888404, 908595, 1110505, 1211460, 1332606, 1817190, 1998909, 2221010, 2665212, 3331515, 3634380, 3997818, 4442020, 6663030, 7995636, 9994545, 13326060, 19989090, 39978180]

約数ペア:

[(1, 39978180), (2, 19989090), (3, 13326060), (4, 9994545), (5, 7995636), (6, 6663030), (9, 4442020), (10, 3997818), (11, 3634380), (12, 3331515), (15, 2665212), (18, 2221010), (20, 1998909), (22, 1817190), (30, 1332606), (33, 1211460), (36, 1110505), (44, 908595), (45, 888404), (55, 726876), (60, 666303), (61, 655380), (66, 605730), (90, 444202), (99, 403820), (110, 363438), (122, 327690), (132, 302865), (165, 242292), (180, 222101), (183, 218460), (198, 201910), (220, 181719), (244, 163845), (305, 131076), (330, 121146), (331, 120780), (366, 109230), (396, 100955), (495, 80764), (549, 72820), (610, 65538), (660, 60573), (662, 60390), (671, 59580), (732, 54615), (915, 43692), (990, 40382), (993, 40260), (1098, 36410), (1220, 32769), (1324, 30195), (1342, 29790), (1655, 24156), (1830, 21846), (1980, 20191), (1986, 20130), (2013, 19860), (2196, 18205), (2684, 14895), (2745, 14564), (2979, 13420), (3310, 12078), (3355, 11916), (3641, 10980), (3660, 10923), (3972, 10065), (4026, 9930), (4965, 8052), (5490, 7282), (5958, 6710), (6039, 6620)]