20154722140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{9421}}^1$

素因数の和:9540

約数の個数: 144

約数和(自身を含む): 51428291040

約数和(自身を除く): 31273568900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 59, 70, 74, 98, 118, 140, 148, 185, 196, 236, 245, 259, 295, 370, 413, 490, 518, 590, 740, 826, 980, 1036, 1180, 1295, 1652, 1813, 2065, 2183, 2590, 2891, 3626, 4130, 4366, 5180, 5782, 7252, 8260, 8732, 9065, 9421, 10915, 11564, 14455, 15281, 18130, 18842, 21830, 28910, 30562, 36260, 37684, 43660, 47105, 57820, 61124, 65947, 76405, 94210, 106967, 131894, 152810, 188420, 213934, 263788, 305620, 329735, 348577, 427868, 461629, 534835, 555839, 659470, 697154, 923258, 1069670, 1111678, 1318940, 1394308, 1742885, 1846516, 2139340, 2223356, 2308145, 2440039, 2779195, 3485770, 3890873, 4616290, 4880078, 5558390, 6971540, 7781746, 9232580, 9760156, 11116780, 12200195, 15563492, 17080273, 19454365, 20566043, 24400390, 27236111, 34160546, 38908730, 41132086, 48800780, 54472222, 68321092, 77817460, 82264172, 85401365, 102830215, 108944444, 136180555, 143962301, 170802730, 205660430, 272361110, 287924602, 341605460, 411320860, 544722220, 575849204, 719811505, 1007736107, 1439623010, 2015472214, 2879246020, 4030944428, 5038680535, 10077361070, 20154722140]

約数ペア:

[(1, 20154722140), (2, 10077361070), (4, 5038680535), (5, 4030944428), (7, 2879246020), (10, 2015472214), (14, 1439623010), (20, 1007736107), (28, 719811505), (35, 575849204), (37, 544722220), (49, 411320860), (59, 341605460), (70, 287924602), (74, 272361110), (98, 205660430), (118, 170802730), (140, 143962301), (148, 136180555), (185, 108944444), (196, 102830215), (236, 85401365), (245, 82264172), (259, 77817460), (295, 68321092), (370, 54472222), (413, 48800780), (490, 41132086), (518, 38908730), (590, 34160546), (740, 27236111), (826, 24400390), (980, 20566043), (1036, 19454365), (1180, 17080273), (1295, 15563492), (1652, 12200195), (1813, 11116780), (2065, 9760156), (2183, 9232580), (2590, 7781746), (2891, 6971540), (3626, 5558390), (4130, 4880078), (4366, 4616290), (5180, 3890873), (5782, 3485770), (7252, 2779195), (8260, 2440039), (8732, 2308145), (9065, 2223356), (9421, 2139340), (10915, 1846516), (11564, 1742885), (14455, 1394308), (15281, 1318940), (18130, 1111678), (18842, 1069670), (21830, 923258), (28910, 697154), (30562, 659470), (36260, 555839), (37684, 534835), (43660, 461629), (47105, 427868), (57820, 348577), (61124, 329735), (65947, 305620), (76405, 263788), (94210, 213934), (106967, 188420), (131894, 152810)]