1557258220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:768

約数の個数: 144

約数和(自身を含む): 3971473632

約数和(自身を除く): 2414215412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 67, 70, 74, 98, 134, 140, 148, 185, 196, 245, 259, 268, 335, 370, 469, 490, 518, 641, 670, 740, 938, 980, 1036, 1282, 1295, 1340, 1813, 1876, 2345, 2479, 2564, 2590, 3205, 3283, 3626, 4487, 4690, 4958, 5180, 6410, 6566, 7252, 8974, 9065, 9380, 9916, 12395, 12820, 13132, 16415, 17353, 17948, 18130, 22435, 23717, 24790, 31409, 32830, 34706, 36260, 42947, 44870, 47434, 49580, 62818, 65660, 69412, 85894, 86765, 89740, 94868, 118585, 121471, 125636, 157045, 166019, 171788, 173530, 214735, 237170, 242942, 300629, 314090, 332038, 347060, 429470, 474340, 485884, 601258, 607355, 628180, 664076, 830095, 858940, 1162133, 1202516, 1214710, 1503145, 1589039, 1660190, 2104403, 2324266, 2429420, 3006290, 3178078, 3320380, 4208806, 4648532, 5810665, 6012580, 6356156, 7945195, 8417612, 10522015, 11123273, 11621330, 15890390, 21044030, 22246546, 23242660, 31780780, 42088060, 44493092, 55616365, 77862911, 111232730, 155725822, 222465460, 311451644, 389314555, 778629110, 1557258220]

約数ペア:

[(1, 1557258220), (2, 778629110), (4, 389314555), (5, 311451644), (7, 222465460), (10, 155725822), (14, 111232730), (20, 77862911), (28, 55616365), (35, 44493092), (37, 42088060), (49, 31780780), (67, 23242660), (70, 22246546), (74, 21044030), (98, 15890390), (134, 11621330), (140, 11123273), (148, 10522015), (185, 8417612), (196, 7945195), (245, 6356156), (259, 6012580), (268, 5810665), (335, 4648532), (370, 4208806), (469, 3320380), (490, 3178078), (518, 3006290), (641, 2429420), (670, 2324266), (740, 2104403), (938, 1660190), (980, 1589039), (1036, 1503145), (1282, 1214710), (1295, 1202516), (1340, 1162133), (1813, 858940), (1876, 830095), (2345, 664076), (2479, 628180), (2564, 607355), (2590, 601258), (3205, 485884), (3283, 474340), (3626, 429470), (4487, 347060), (4690, 332038), (4958, 314090), (5180, 300629), (6410, 242942), (6566, 237170), (7252, 214735), (8974, 173530), (9065, 171788), (9380, 166019), (9916, 157045), (12395, 125636), (12820, 121471), (13132, 118585), (16415, 94868), (17353, 89740), (17948, 86765), (18130, 85894), (22435, 69412), (23717, 65660), (24790, 62818), (31409, 49580), (32830, 47434), (34706, 44870), (36260, 42947)]