678679392760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{121019}}^1$

素因数の和:121253

約数の個数: 128

約数和(自身を含む): 1652068224000

約数和(自身を除く): 973388831240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 157, 188, 190, 235, 314, 376, 380, 470, 628, 760, 785, 893, 940, 1256, 1570, 1786, 1880, 2983, 3140, 3572, 4465, 5966, 6280, 7144, 7379, 8930, 11932, 14758, 14915, 17860, 23864, 29516, 29830, 35720, 36895, 59032, 59660, 73790, 119320, 121019, 140201, 147580, 242038, 280402, 295160, 484076, 560804, 605095, 701005, 968152, 1121608, 1210190, 1402010, 2299361, 2420380, 2804020, 4598722, 4840760, 5608040, 5687893, 9197444, 11375786, 11496805, 18394888, 18999983, 22751572, 22993610, 28439465, 37999966, 45503144, 45987220, 56878930, 75999932, 91974440, 94999915, 108069967, 113757860, 151999864, 189999830, 216139934, 227515720, 360999677, 379999660, 432279868, 540349835, 721999354, 759999320, 864559736, 892999201, 1080699670, 1443998708, 1785998402, 1804998385, 2161399340, 2887997416, 3571996804, 3609996770, 4322798680, 4464996005, 7143993608, 7219993540, 8929992010, 14439987080, 16966984819, 17859984020, 33933969638, 35719968040, 67867939276, 84834924095, 135735878552, 169669848190, 339339696380, 678679392760]

約数ペア:

[(1, 678679392760), (2, 339339696380), (4, 169669848190), (5, 135735878552), (8, 84834924095), (10, 67867939276), (19, 35719968040), (20, 33933969638), (38, 17859984020), (40, 16966984819), (47, 14439987080), (76, 8929992010), (94, 7219993540), (95, 7143993608), (152, 4464996005), (157, 4322798680), (188, 3609996770), (190, 3571996804), (235, 2887997416), (314, 2161399340), (376, 1804998385), (380, 1785998402), (470, 1443998708), (628, 1080699670), (760, 892999201), (785, 864559736), (893, 759999320), (940, 721999354), (1256, 540349835), (1570, 432279868), (1786, 379999660), (1880, 360999677), (2983, 227515720), (3140, 216139934), (3572, 189999830), (4465, 151999864), (5966, 113757860), (6280, 108069967), (7144, 94999915), (7379, 91974440), (8930, 75999932), (11932, 56878930), (14758, 45987220), (14915, 45503144), (17860, 37999966), (23864, 28439465), (29516, 22993610), (29830, 22751572), (35720, 18999983), (36895, 18394888), (59032, 11496805), (59660, 11375786), (73790, 9197444), (119320, 5687893), (121019, 5608040), (140201, 4840760), (147580, 4598722), (242038, 2804020), (280402, 2420380), (295160, 2299361), (484076, 1402010), (560804, 1210190), (605095, 1121608), (701005, 968152)]