17979780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 64350720

約数和(自身を除く): 46370940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 52, 60, 65, 70, 74, 78, 84, 89, 91, 105, 111, 130, 140, 148, 156, 178, 182, 185, 195, 210, 222, 259, 260, 267, 273, 356, 364, 370, 390, 420, 444, 445, 455, 481, 518, 534, 546, 555, 623, 740, 777, 780, 890, 910, 962, 1036, 1068, 1092, 1110, 1157, 1246, 1295, 1335, 1365, 1443, 1554, 1780, 1820, 1869, 1924, 2220, 2314, 2405, 2492, 2590, 2670, 2730, 2886, 3108, 3115, 3293, 3367, 3471, 3738, 3885, 4628, 4810, 5180, 5340, 5460, 5772, 5785, 6230, 6586, 6734, 6942, 7215, 7476, 7770, 8099, 9345, 9620, 9879, 10101, 11570, 12460, 13172, 13468, 13884, 14430, 15540, 16198, 16465, 16835, 17355, 18690, 19758, 20202, 23051, 23140, 24297, 28860, 32396, 32930, 33670, 34710, 37380, 39516, 40404, 40495, 42809, 46102, 48594, 49395, 50505, 65860, 67340, 69153, 69420, 80990, 85618, 92204, 97188, 98790, 101010, 115255, 121485, 128427, 138306, 161980, 171236, 197580, 202020, 214045, 230510, 242970, 256854, 276612, 299663, 345765, 428090, 461020, 485940, 513708, 599326, 642135, 691530, 856180, 898989, 1198652, 1284270, 1383060, 1498315, 1797978, 2568540, 2996630, 3595956, 4494945, 5993260, 8989890, 17979780]

約数ペア:

[(1, 17979780), (2, 8989890), (3, 5993260), (4, 4494945), (5, 3595956), (6, 2996630), (7, 2568540), (10, 1797978), (12, 1498315), (13, 1383060), (14, 1284270), (15, 1198652), (20, 898989), (21, 856180), (26, 691530), (28, 642135), (30, 599326), (35, 513708), (37, 485940), (39, 461020), (42, 428090), (52, 345765), (60, 299663), (65, 276612), (70, 256854), (74, 242970), (78, 230510), (84, 214045), (89, 202020), (91, 197580), (105, 171236), (111, 161980), (130, 138306), (140, 128427), (148, 121485), (156, 115255), (178, 101010), (182, 98790), (185, 97188), (195, 92204), (210, 85618), (222, 80990), (259, 69420), (260, 69153), (267, 67340), (273, 65860), (356, 50505), (364, 49395), (370, 48594), (390, 46102), (420, 42809), (444, 40495), (445, 40404), (455, 39516), (481, 37380), (518, 34710), (534, 33670), (546, 32930), (555, 32396), (623, 28860), (740, 24297), (777, 23140), (780, 23051), (890, 20202), (910, 19758), (962, 18690), (1036, 17355), (1068, 16835), (1092, 16465), (1110, 16198), (1157, 15540), (1246, 14430), (1295, 13884), (1335, 13468), (1365, 13172), (1443, 12460), (1554, 11570), (1780, 10101), (1820, 9879), (1869, 9620), (1924, 9345), (2220, 8099), (2314, 7770), (2405, 7476), (2492, 7215), (2590, 6942), (2670, 6734), (2730, 6586), (2886, 6230), (3108, 5785), (3115, 5772), (3293, 5460), (3367, 5340), (3471, 5180), (3738, 4810), (3885, 4628)]