78039990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:443

約数の個数: 128

約数和(自身を含む): 240261120

約数和(自身を除く): 162221130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 157, 189, 210, 263, 270, 314, 315, 378, 471, 526, 630, 785, 789, 942, 945, 1099, 1315, 1413, 1570, 1578, 1841, 1890, 2198, 2355, 2367, 2630, 2826, 3297, 3682, 3945, 4239, 4710, 4734, 5495, 5523, 6594, 7065, 7101, 7890, 8478, 9205, 9891, 10990, 11046, 11835, 14130, 14202, 16485, 16569, 18410, 19782, 21195, 23670, 27615, 29673, 32970, 33138, 35505, 41291, 42390, 49455, 49707, 55230, 59346, 71010, 82582, 82845, 98910, 99414, 123873, 148365, 165690, 206455, 247746, 248535, 289037, 296730, 371619, 412910, 497070, 578074, 619365, 743238, 867111, 1114857, 1238730, 1445185, 1734222, 1858095, 2229714, 2601333, 2890370, 3716190, 4335555, 5202666, 5574285, 7803999, 8671110, 11148570, 13006665, 15607998, 26013330, 39019995, 78039990]

約数ペア:

[(1, 78039990), (2, 39019995), (3, 26013330), (5, 15607998), (6, 13006665), (7, 11148570), (9, 8671110), (10, 7803999), (14, 5574285), (15, 5202666), (18, 4335555), (21, 3716190), (27, 2890370), (30, 2601333), (35, 2229714), (42, 1858095), (45, 1734222), (54, 1445185), (63, 1238730), (70, 1114857), (90, 867111), (105, 743238), (126, 619365), (135, 578074), (157, 497070), (189, 412910), (210, 371619), (263, 296730), (270, 289037), (314, 248535), (315, 247746), (378, 206455), (471, 165690), (526, 148365), (630, 123873), (785, 99414), (789, 98910), (942, 82845), (945, 82582), (1099, 71010), (1315, 59346), (1413, 55230), (1570, 49707), (1578, 49455), (1841, 42390), (1890, 41291), (2198, 35505), (2355, 33138), (2367, 32970), (2630, 29673), (2826, 27615), (3297, 23670), (3682, 21195), (3945, 19782), (4239, 18410), (4710, 16569), (4734, 16485), (5495, 14202), (5523, 14130), (6594, 11835), (7065, 11046), (7101, 10990), (7890, 9891), (8478, 9205)]