20093220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 71705088

約数和(自身を除く): 51611868

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, 431, 444, 518, 555, 630, 666, 740, 777, 862, 1036, 1110, 1260, 1293, 1295, 1332, 1554, 1665, 1724, 2155, 2220, 2331, 2586, 2590, 3017, 3108, 3330, 3879, 3885, 4310, 4662, 5172, 5180, 6034, 6465, 6660, 7758, 7770, 8620, 9051, 9324, 11655, 12068, 12930, 15085, 15516, 15540, 15947, 18102, 19395, 23310, 25860, 27153, 30170, 31894, 36204, 38790, 45255, 46620, 47841, 54306, 60340, 63788, 77580, 79735, 90510, 95682, 108612, 111629, 135765, 143523, 159470, 181020, 191364, 223258, 239205, 271530, 287046, 318940, 334887, 446516, 478410, 543060, 558145, 574092, 669774, 717615, 956820, 1004661, 1116290, 1339548, 1435230, 1674435, 2009322, 2232580, 2870460, 3348870, 4018644, 5023305, 6697740, 10046610, 20093220]

約数ペア:

[(1, 20093220), (2, 10046610), (3, 6697740), (4, 5023305), (5, 4018644), (6, 3348870), (7, 2870460), (9, 2232580), (10, 2009322), (12, 1674435), (14, 1435230), (15, 1339548), (18, 1116290), (20, 1004661), (21, 956820), (28, 717615), (30, 669774), (35, 574092), (36, 558145), (37, 543060), (42, 478410), (45, 446516), (60, 334887), (63, 318940), (70, 287046), (74, 271530), (84, 239205), (90, 223258), (105, 191364), (111, 181020), (126, 159470), (140, 143523), (148, 135765), (180, 111629), (185, 108612), (210, 95682), (222, 90510), (252, 79735), (259, 77580), (315, 63788), (333, 60340), (370, 54306), (420, 47841), (431, 46620), (444, 45255), (518, 38790), (555, 36204), (630, 31894), (666, 30170), (740, 27153), (777, 25860), (862, 23310), (1036, 19395), (1110, 18102), (1260, 15947), (1293, 15540), (1295, 15516), (1332, 15085), (1554, 12930), (1665, 12068), (1724, 11655), (2155, 9324), (2220, 9051), (2331, 8620), (2586, 7770), (2590, 7758), (3017, 6660), (3108, 6465), (3330, 6034), (3879, 5180), (3885, 5172), (4310, 4662)]