78841980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{1277}}^1$

素因数の和:1313

約数の個数: 144

約数和(自身を含む): 279115200

約数和(自身を除く): 200273220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1277, 1372, 1470, 1715, 1764, 2058, 2205, 2554, 2940, 3087, 3430, 3831, 4116, 4410, 5108, 5145, 6174, 6385, 6860, 7662, 8820, 8939, 10290, 11493, 12348, 12770, 15324, 15435, 17878, 19155, 20580, 22986, 25540, 26817, 30870, 35756, 38310, 44695, 45972, 53634, 57465, 61740, 62573, 76620, 80451, 89390, 107268, 114930, 125146, 134085, 160902, 178780, 187719, 229860, 250292, 268170, 312865, 321804, 375438, 402255, 438011, 536340, 563157, 625730, 750876, 804510, 876022, 938595, 1126314, 1251460, 1314033, 1609020, 1752044, 1877190, 2190055, 2252628, 2628066, 2815785, 3754380, 3942099, 4380110, 5256132, 5631570, 6570165, 7884198, 8760220, 11263140, 13140330, 15768396, 19710495, 26280660, 39420990, 78841980]

約数ペア:

[(1, 78841980), (2, 39420990), (3, 26280660), (4, 19710495), (5, 15768396), (6, 13140330), (7, 11263140), (9, 8760220), (10, 7884198), (12, 6570165), (14, 5631570), (15, 5256132), (18, 4380110), (20, 3942099), (21, 3754380), (28, 2815785), (30, 2628066), (35, 2252628), (36, 2190055), (42, 1877190), (45, 1752044), (49, 1609020), (60, 1314033), (63, 1251460), (70, 1126314), (84, 938595), (90, 876022), (98, 804510), (105, 750876), (126, 625730), (140, 563157), (147, 536340), (180, 438011), (196, 402255), (210, 375438), (245, 321804), (252, 312865), (294, 268170), (315, 250292), (343, 229860), (420, 187719), (441, 178780), (490, 160902), (588, 134085), (630, 125146), (686, 114930), (735, 107268), (882, 89390), (980, 80451), (1029, 76620), (1260, 62573), (1277, 61740), (1372, 57465), (1470, 53634), (1715, 45972), (1764, 44695), (2058, 38310), (2205, 35756), (2554, 30870), (2940, 26817), (3087, 25540), (3430, 22986), (3831, 20580), (4116, 19155), (4410, 17878), (5108, 15435), (5145, 15324), (6174, 12770), (6385, 12348), (6860, 11493), (7662, 10290), (8820, 8939)]