78831760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 160

約数和(自身を含む): 228556800

約数和(自身を除く): 149725040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 190, 217, 239, 248, 266, 280, 304, 310, 380, 434, 478, 496, 532, 560, 589, 620, 665, 760, 868, 956, 1064, 1085, 1178, 1195, 1240, 1330, 1520, 1673, 1736, 1912, 2128, 2170, 2356, 2390, 2480, 2660, 2945, 3346, 3472, 3824, 4123, 4340, 4541, 4712, 4780, 5320, 5890, 6692, 7409, 8246, 8365, 8680, 9082, 9424, 9560, 10640, 11780, 13384, 14818, 16492, 16730, 17360, 18164, 19120, 20615, 22705, 23560, 26768, 29636, 31787, 32984, 33460, 36328, 37045, 41230, 45410, 47120, 51863, 59272, 63574, 65968, 66920, 72656, 74090, 82460, 90820, 103726, 118544, 127148, 133840, 140771, 148180, 158935, 164920, 181640, 207452, 254296, 259315, 281542, 296360, 317870, 329840, 363280, 414904, 508592, 518630, 563084, 592720, 635740, 703855, 829808, 985397, 1037260, 1126168, 1271480, 1407710, 1970794, 2074520, 2252336, 2542960, 2815420, 3941588, 4149040, 4926985, 5630840, 7883176, 9853970, 11261680, 15766352, 19707940, 39415880, 78831760]

約数ペア:

[(1, 78831760), (2, 39415880), (4, 19707940), (5, 15766352), (7, 11261680), (8, 9853970), (10, 7883176), (14, 5630840), (16, 4926985), (19, 4149040), (20, 3941588), (28, 2815420), (31, 2542960), (35, 2252336), (38, 2074520), (40, 1970794), (56, 1407710), (62, 1271480), (70, 1126168), (76, 1037260), (80, 985397), (95, 829808), (112, 703855), (124, 635740), (133, 592720), (140, 563084), (152, 518630), (155, 508592), (190, 414904), (217, 363280), (239, 329840), (248, 317870), (266, 296360), (280, 281542), (304, 259315), (310, 254296), (380, 207452), (434, 181640), (478, 164920), (496, 158935), (532, 148180), (560, 140771), (589, 133840), (620, 127148), (665, 118544), (760, 103726), (868, 90820), (956, 82460), (1064, 74090), (1085, 72656), (1178, 66920), (1195, 65968), (1240, 63574), (1330, 59272), (1520, 51863), (1673, 47120), (1736, 45410), (1912, 41230), (2128, 37045), (2170, 36328), (2356, 33460), (2390, 32984), (2480, 31787), (2660, 29636), (2945, 26768), (3346, 23560), (3472, 22705), (3824, 20615), (4123, 19120), (4340, 18164), (4541, 17360), (4712, 16730), (4780, 16492), (5320, 14818), (5890, 13384), (6692, 11780), (7409, 10640), (8246, 9560), (8365, 9424), (8680, 9082)]