220321640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{929}}^1$

素因数の和:976

約数の個数: 144

約数和(自身を含む): 634529700

約数和(自身を除く): 414208060

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 121, 140, 154, 196, 220, 242, 245, 280, 308, 385, 392, 440, 484, 490, 539, 605, 616, 770, 847, 929, 968, 980, 1078, 1210, 1540, 1694, 1858, 1960, 2156, 2420, 2695, 3080, 3388, 3716, 4235, 4312, 4645, 4840, 5390, 5929, 6503, 6776, 7432, 8470, 9290, 10219, 10780, 11858, 13006, 16940, 18580, 20438, 21560, 23716, 26012, 29645, 32515, 33880, 37160, 40876, 45521, 47432, 51095, 52024, 59290, 65030, 71533, 81752, 91042, 102190, 112409, 118580, 130060, 143066, 182084, 204380, 224818, 227605, 237160, 260120, 286132, 357665, 364168, 408760, 449636, 455210, 500731, 562045, 572264, 715330, 786863, 899272, 910420, 1001462, 1124090, 1430660, 1573726, 1820840, 2002924, 2248180, 2503655, 2861320, 3147452, 3934315, 4005848, 4496360, 5007310, 5508041, 6294904, 7868630, 10014620, 11016082, 15737260, 20029240, 22032164, 27540205, 31474520, 44064328, 55080410, 110160820, 220321640]

約数ペア:

[(1, 220321640), (2, 110160820), (4, 55080410), (5, 44064328), (7, 31474520), (8, 27540205), (10, 22032164), (11, 20029240), (14, 15737260), (20, 11016082), (22, 10014620), (28, 7868630), (35, 6294904), (40, 5508041), (44, 5007310), (49, 4496360), (55, 4005848), (56, 3934315), (70, 3147452), (77, 2861320), (88, 2503655), (98, 2248180), (110, 2002924), (121, 1820840), (140, 1573726), (154, 1430660), (196, 1124090), (220, 1001462), (242, 910420), (245, 899272), (280, 786863), (308, 715330), (385, 572264), (392, 562045), (440, 500731), (484, 455210), (490, 449636), (539, 408760), (605, 364168), (616, 357665), (770, 286132), (847, 260120), (929, 237160), (968, 227605), (980, 224818), (1078, 204380), (1210, 182084), (1540, 143066), (1694, 130060), (1858, 118580), (1960, 112409), (2156, 102190), (2420, 91042), (2695, 81752), (3080, 71533), (3388, 65030), (3716, 59290), (4235, 52024), (4312, 51095), (4645, 47432), (4840, 45521), (5390, 40876), (5929, 37160), (6503, 33880), (6776, 32515), (7432, 29645), (8470, 26012), (9290, 23716), (10219, 21560), (10780, 20438), (11858, 18580), (13006, 16940)]