68640180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:694

約数の個数: 144

約数和(自身を含む): 229977216

約数和(自身を除く): 161337036

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 294, 370, 420, 444, 490, 518, 555, 588, 631, 735, 740, 777, 980, 1036, 1110, 1262, 1295, 1470, 1554, 1813, 1893, 2220, 2524, 2590, 2940, 3108, 3155, 3626, 3786, 3885, 4417, 5180, 5439, 6310, 7252, 7572, 7770, 8834, 9065, 9465, 10878, 12620, 13251, 15540, 17668, 18130, 18930, 21756, 22085, 23347, 26502, 27195, 30919, 36260, 37860, 44170, 46694, 53004, 54390, 61838, 66255, 70041, 88340, 92757, 93388, 108780, 116735, 123676, 132510, 140082, 154595, 163429, 185514, 233470, 265020, 280164, 309190, 326858, 350205, 371028, 463785, 466940, 490287, 618380, 653716, 700410, 817145, 927570, 980574, 1144003, 1400820, 1634290, 1855140, 1961148, 2288006, 2451435, 3268580, 3432009, 4576012, 4902870, 5720015, 6864018, 9805740, 11440030, 13728036, 17160045, 22880060, 34320090, 68640180]

約数ペア:

[(1, 68640180), (2, 34320090), (3, 22880060), (4, 17160045), (5, 13728036), (6, 11440030), (7, 9805740), (10, 6864018), (12, 5720015), (14, 4902870), (15, 4576012), (20, 3432009), (21, 3268580), (28, 2451435), (30, 2288006), (35, 1961148), (37, 1855140), (42, 1634290), (49, 1400820), (60, 1144003), (70, 980574), (74, 927570), (84, 817145), (98, 700410), (105, 653716), (111, 618380), (140, 490287), (147, 466940), (148, 463785), (185, 371028), (196, 350205), (210, 326858), (222, 309190), (245, 280164), (259, 265020), (294, 233470), (370, 185514), (420, 163429), (444, 154595), (490, 140082), (518, 132510), (555, 123676), (588, 116735), (631, 108780), (735, 93388), (740, 92757), (777, 88340), (980, 70041), (1036, 66255), (1110, 61838), (1262, 54390), (1295, 53004), (1470, 46694), (1554, 44170), (1813, 37860), (1893, 36260), (2220, 30919), (2524, 27195), (2590, 26502), (2940, 23347), (3108, 22085), (3155, 21756), (3626, 18930), (3786, 18130), (3885, 17668), (4417, 15540), (5180, 13251), (5439, 12620), (6310, 10878), (7252, 9465), (7572, 9065), (7770, 8834)]