80739180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:510

約数の個数: 144

約数和(自身を含む): 261424800

約数和(自身を除く): 180685620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 135, 148, 162, 180, 185, 222, 243, 270, 324, 333, 370, 405, 444, 449, 486, 540, 555, 666, 740, 810, 898, 972, 999, 1110, 1215, 1332, 1347, 1620, 1665, 1796, 1998, 2220, 2245, 2430, 2694, 2997, 3330, 3996, 4041, 4490, 4860, 4995, 5388, 5994, 6660, 6735, 8082, 8980, 8991, 9990, 11988, 12123, 13470, 14985, 16164, 16613, 17982, 19980, 20205, 24246, 26940, 29970, 33226, 35964, 36369, 40410, 44955, 48492, 49839, 59940, 60615, 66452, 72738, 80820, 83065, 89910, 99678, 109107, 121230, 145476, 149517, 166130, 179820, 181845, 199356, 218214, 242460, 249195, 299034, 332260, 363690, 436428, 448551, 498390, 545535, 598068, 727380, 747585, 897102, 996780, 1091070, 1345653, 1495170, 1794204, 2182140, 2242755, 2691306, 2990340, 4036959, 4485510, 5382612, 6728265, 8073918, 8971020, 13456530, 16147836, 20184795, 26913060, 40369590, 80739180]

約数ペア:

[(1, 80739180), (2, 40369590), (3, 26913060), (4, 20184795), (5, 16147836), (6, 13456530), (9, 8971020), (10, 8073918), (12, 6728265), (15, 5382612), (18, 4485510), (20, 4036959), (27, 2990340), (30, 2691306), (36, 2242755), (37, 2182140), (45, 1794204), (54, 1495170), (60, 1345653), (74, 1091070), (81, 996780), (90, 897102), (108, 747585), (111, 727380), (135, 598068), (148, 545535), (162, 498390), (180, 448551), (185, 436428), (222, 363690), (243, 332260), (270, 299034), (324, 249195), (333, 242460), (370, 218214), (405, 199356), (444, 181845), (449, 179820), (486, 166130), (540, 149517), (555, 145476), (666, 121230), (740, 109107), (810, 99678), (898, 89910), (972, 83065), (999, 80820), (1110, 72738), (1215, 66452), (1332, 60615), (1347, 59940), (1620, 49839), (1665, 48492), (1796, 44955), (1998, 40410), (2220, 36369), (2245, 35964), (2430, 33226), (2694, 29970), (2997, 26940), (3330, 24246), (3996, 20205), (4041, 19980), (4490, 17982), (4860, 16613), (4995, 16164), (5388, 14985), (5994, 13470), (6660, 12123), (6735, 11988), (8082, 9990), (8980, 8991)]