28764540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:676

約数の個数: 144

約数和(自身を含む): 102578112

約数和(自身を除く): 73813572

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 518, 555, 617, 630, 666, 740, 777, 1036, 1110, 1234, 1260, 1295, 1332, 1554, 1665, 1851, 2220, 2331, 2468, 2590, 3085, 3108, 3330, 3702, 3885, 4319, 4662, 5180, 5553, 6170, 6660, 7404, 7770, 8638, 9255, 9324, 11106, 11655, 12340, 12957, 15540, 17276, 18510, 21595, 22212, 22829, 23310, 25914, 27765, 37020, 38871, 43190, 45658, 46620, 51828, 55530, 64785, 68487, 77742, 86380, 91316, 111060, 114145, 129570, 136974, 155484, 159803, 194355, 205461, 228290, 259140, 273948, 319606, 342435, 388710, 410922, 456580, 479409, 639212, 684870, 777420, 799015, 821844, 958818, 1027305, 1369740, 1438227, 1598030, 1917636, 2054610, 2397045, 2876454, 3196060, 4109220, 4794090, 5752908, 7191135, 9588180, 14382270, 28764540]

約数ペア:

[(1, 28764540), (2, 14382270), (3, 9588180), (4, 7191135), (5, 5752908), (6, 4794090), (7, 4109220), (9, 3196060), (10, 2876454), (12, 2397045), (14, 2054610), (15, 1917636), (18, 1598030), (20, 1438227), (21, 1369740), (28, 1027305), (30, 958818), (35, 821844), (36, 799015), (37, 777420), (42, 684870), (45, 639212), (60, 479409), (63, 456580), (70, 410922), (74, 388710), (84, 342435), (90, 319606), (105, 273948), (111, 259140), (126, 228290), (140, 205461), (148, 194355), (180, 159803), (185, 155484), (210, 136974), (222, 129570), (252, 114145), (259, 111060), (315, 91316), (333, 86380), (370, 77742), (420, 68487), (444, 64785), (518, 55530), (555, 51828), (617, 46620), (630, 45658), (666, 43190), (740, 38871), (777, 37020), (1036, 27765), (1110, 25914), (1234, 23310), (1260, 22829), (1295, 22212), (1332, 21595), (1554, 18510), (1665, 17276), (1851, 15540), (2220, 12957), (2331, 12340), (2468, 11655), (2590, 11106), (3085, 9324), (3108, 9255), (3330, 8638), (3702, 7770), (3885, 7404), (4319, 6660), (4662, 6170), (5180, 5553)]