20503560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{317}}^1$

素因数の和:356

約数の個数: 192

約数和(自身を含む): 78304320

約数和(自身を除く): 57800760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 49, 55, 56, 60, 66, 70, 77, 84, 88, 98, 105, 110, 120, 132, 140, 147, 154, 165, 168, 196, 210, 220, 231, 245, 264, 280, 294, 308, 317, 330, 385, 392, 420, 440, 462, 490, 539, 588, 616, 634, 660, 735, 770, 840, 924, 951, 980, 1078, 1155, 1176, 1268, 1320, 1470, 1540, 1585, 1617, 1848, 1902, 1960, 2156, 2219, 2310, 2536, 2695, 2940, 3080, 3170, 3234, 3487, 3804, 4312, 4438, 4620, 4755, 5390, 5880, 6340, 6468, 6657, 6974, 7608, 8085, 8876, 9240, 9510, 10461, 10780, 11095, 12680, 12936, 13314, 13948, 15533, 16170, 17435, 17752, 19020, 20922, 21560, 22190, 24409, 26628, 27896, 31066, 32340, 33285, 34870, 38040, 41844, 44380, 46599, 48818, 52305, 53256, 62132, 64680, 66570, 69740, 73227, 77665, 83688, 88760, 93198, 97636, 104610, 122045, 124264, 133140, 139480, 146454, 155330, 170863, 186396, 195272, 209220, 232995, 244090, 266280, 292908, 310660, 341726, 366135, 372792, 418440, 465990, 488180, 512589, 585816, 621320, 683452, 732270, 854315, 931980, 976360, 1025178, 1366904, 1464540, 1708630, 1863960, 2050356, 2562945, 2929080, 3417260, 4100712, 5125890, 6834520, 10251780, 20503560]

約数ペア:

[(1, 20503560), (2, 10251780), (3, 6834520), (4, 5125890), (5, 4100712), (6, 3417260), (7, 2929080), (8, 2562945), (10, 2050356), (11, 1863960), (12, 1708630), (14, 1464540), (15, 1366904), (20, 1025178), (21, 976360), (22, 931980), (24, 854315), (28, 732270), (30, 683452), (33, 621320), (35, 585816), (40, 512589), (42, 488180), (44, 465990), (49, 418440), (55, 372792), (56, 366135), (60, 341726), (66, 310660), (70, 292908), (77, 266280), (84, 244090), (88, 232995), (98, 209220), (105, 195272), (110, 186396), (120, 170863), (132, 155330), (140, 146454), (147, 139480), (154, 133140), (165, 124264), (168, 122045), (196, 104610), (210, 97636), (220, 93198), (231, 88760), (245, 83688), (264, 77665), (280, 73227), (294, 69740), (308, 66570), (317, 64680), (330, 62132), (385, 53256), (392, 52305), (420, 48818), (440, 46599), (462, 44380), (490, 41844), (539, 38040), (588, 34870), (616, 33285), (634, 32340), (660, 31066), (735, 27896), (770, 26628), (840, 24409), (924, 22190), (951, 21560), (980, 20922), (1078, 19020), (1155, 17752), (1176, 17435), (1268, 16170), (1320, 15533), (1470, 13948), (1540, 13314), (1585, 12936), (1617, 12680), (1848, 11095), (1902, 10780), (1960, 10461), (2156, 9510), (2219, 9240), (2310, 8876), (2536, 8085), (2695, 7608), (2940, 6974), (3080, 6657), (3170, 6468), (3234, 6340), (3487, 5880), (3804, 5390), (4312, 4755), (4438, 4620)]