777280640

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 1912965120

約数和(自身を除く): 1135684480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 127, 128, 131, 146, 160, 254, 262, 292, 320, 365, 508, 524, 584, 635, 640, 655, 730, 1016, 1048, 1168, 1270, 1310, 1460, 2032, 2096, 2336, 2540, 2620, 2920, 4064, 4192, 4672, 5080, 5240, 5840, 8128, 8384, 9271, 9344, 9563, 10160, 10480, 11680, 16256, 16637, 16768, 18542, 19126, 20320, 20960, 23360, 33274, 37084, 38252, 40640, 41920, 46355, 46720, 47815, 66548, 74168, 76504, 81280, 83185, 83840, 92710, 95630, 133096, 148336, 153008, 166370, 185420, 191260, 266192, 296672, 306016, 332740, 370840, 382520, 532384, 593344, 612032, 665480, 741680, 765040, 1064768, 1186688, 1214501, 1224064, 1330960, 1483360, 1530080, 2129536, 2429002, 2661920, 2966720, 3060160, 4858004, 5323840, 5933440, 6072505, 6120320, 9716008, 10647680, 12145010, 19432016, 24290020, 38864032, 48580040, 77728064, 97160080, 155456128, 194320160, 388640320, 777280640]

約数ペア:

[(1, 777280640), (2, 388640320), (4, 194320160), (5, 155456128), (8, 97160080), (10, 77728064), (16, 48580040), (20, 38864032), (32, 24290020), (40, 19432016), (64, 12145010), (73, 10647680), (80, 9716008), (127, 6120320), (128, 6072505), (131, 5933440), (146, 5323840), (160, 4858004), (254, 3060160), (262, 2966720), (292, 2661920), (320, 2429002), (365, 2129536), (508, 1530080), (524, 1483360), (584, 1330960), (635, 1224064), (640, 1214501), (655, 1186688), (730, 1064768), (1016, 765040), (1048, 741680), (1168, 665480), (1270, 612032), (1310, 593344), (1460, 532384), (2032, 382520), (2096, 370840), (2336, 332740), (2540, 306016), (2620, 296672), (2920, 266192), (4064, 191260), (4192, 185420), (4672, 166370), (5080, 153008), (5240, 148336), (5840, 133096), (8128, 95630), (8384, 92710), (9271, 83840), (9344, 83185), (9563, 81280), (10160, 76504), (10480, 74168), (11680, 66548), (16256, 47815), (16637, 46720), (16768, 46355), (18542, 41920), (19126, 40640), (20320, 38252), (20960, 37084), (23360, 33274)]