81741660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1404

約数の個数: 192

約数和(自身を含む): 307528704

約数和(自身を除く): 225787044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 26, 28, 30, 33, 35, 39, 42, 44, 52, 55, 60, 65, 66, 70, 77, 78, 84, 91, 105, 110, 130, 132, 140, 143, 154, 156, 165, 182, 195, 210, 220, 231, 260, 273, 286, 308, 330, 364, 385, 390, 420, 429, 455, 462, 546, 572, 660, 715, 770, 780, 858, 910, 924, 1001, 1092, 1155, 1361, 1365, 1430, 1540, 1716, 1820, 2002, 2145, 2310, 2722, 2730, 2860, 3003, 4004, 4083, 4290, 4620, 5005, 5444, 5460, 6006, 6805, 8166, 8580, 9527, 10010, 12012, 13610, 14971, 15015, 16332, 17693, 19054, 20020, 20415, 27220, 28581, 29942, 30030, 35386, 38108, 40830, 44913, 47635, 53079, 57162, 59884, 60060, 70772, 74855, 81660, 88465, 89826, 95270, 104797, 106158, 114324, 123851, 142905, 149710, 176930, 179652, 190540, 194623, 209594, 212316, 224565, 247702, 265395, 285810, 299420, 314391, 353860, 371553, 389246, 419188, 449130, 495404, 523985, 530790, 571620, 583869, 619255, 628782, 743106, 778492, 898260, 973115, 1047970, 1061580, 1167738, 1238510, 1257564, 1362361, 1486212, 1571955, 1857765, 1946230, 2095940, 2335476, 2477020, 2724722, 2919345, 3143910, 3715530, 3892460, 4087083, 5449444, 5838690, 6287820, 6811805, 7431060, 8174166, 11677380, 13623610, 16348332, 20435415, 27247220, 40870830, 81741660]

約数ペア:

[(1, 81741660), (2, 40870830), (3, 27247220), (4, 20435415), (5, 16348332), (6, 13623610), (7, 11677380), (10, 8174166), (11, 7431060), (12, 6811805), (13, 6287820), (14, 5838690), (15, 5449444), (20, 4087083), (21, 3892460), (22, 3715530), (26, 3143910), (28, 2919345), (30, 2724722), (33, 2477020), (35, 2335476), (39, 2095940), (42, 1946230), (44, 1857765), (52, 1571955), (55, 1486212), (60, 1362361), (65, 1257564), (66, 1238510), (70, 1167738), (77, 1061580), (78, 1047970), (84, 973115), (91, 898260), (105, 778492), (110, 743106), (130, 628782), (132, 619255), (140, 583869), (143, 571620), (154, 530790), (156, 523985), (165, 495404), (182, 449130), (195, 419188), (210, 389246), (220, 371553), (231, 353860), (260, 314391), (273, 299420), (286, 285810), (308, 265395), (330, 247702), (364, 224565), (385, 212316), (390, 209594), (420, 194623), (429, 190540), (455, 179652), (462, 176930), (546, 149710), (572, 142905), (660, 123851), (715, 114324), (770, 106158), (780, 104797), (858, 95270), (910, 89826), (924, 88465), (1001, 81660), (1092, 74855), (1155, 70772), (1361, 60060), (1365, 59884), (1430, 57162), (1540, 53079), (1716, 47635), (1820, 44913), (2002, 40830), (2145, 38108), (2310, 35386), (2722, 30030), (2730, 29942), (2860, 28581), (3003, 27220), (4004, 20415), (4083, 20020), (4290, 19054), (4620, 17693), (5005, 16332), (5444, 15015), (5460, 14971), (6006, 13610), (6805, 12012), (8166, 10010), (8580, 9527)]