1220346820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:458

約数の個数: 192

約数和(自身を含む): 3396556800

約数和(自身を除く): 2176209980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 179, 190, 209, 220, 233, 266, 308, 358, 380, 385, 418, 466, 532, 665, 716, 770, 836, 895, 932, 1045, 1165, 1253, 1330, 1463, 1540, 1631, 1790, 1969, 2090, 2330, 2506, 2563, 2660, 2926, 3262, 3401, 3580, 3938, 4180, 4427, 4660, 5012, 5126, 5852, 6265, 6524, 6802, 7315, 7876, 8155, 8854, 9845, 10252, 12530, 12815, 13604, 13783, 14630, 16310, 17005, 17708, 17941, 19690, 22135, 23807, 25060, 25630, 27566, 29260, 30989, 32620, 34010, 35882, 37411, 39380, 41707, 44270, 47614, 48697, 51260, 55132, 61978, 68020, 68915, 71764, 74822, 83414, 88540, 89705, 95228, 97394, 119035, 123956, 137830, 149644, 154945, 166828, 179410, 187055, 194788, 208535, 238070, 243485, 261877, 275660, 291949, 309890, 340879, 358820, 374110, 417070, 458777, 476140, 486970, 523754, 583898, 619780, 681758, 748220, 792433, 834140, 917554, 973940, 1047508, 1167796, 1309385, 1363516, 1459745, 1584866, 1704395, 1835108, 2293885, 2618770, 2919490, 3169732, 3211439, 3408790, 3962165, 4587770, 5237540, 5547031, 5838980, 6422878, 6817580, 7924330, 8716763, 9175540, 11094062, 12845756, 15848660, 16057195, 17433526, 22188124, 27735155, 32114390, 34867052, 43583815, 55470310, 61017341, 64228780, 87167630, 110940620, 122034682, 174335260, 244069364, 305086705, 610173410, 1220346820]

約数ペア:

[(1, 1220346820), (2, 610173410), (4, 305086705), (5, 244069364), (7, 174335260), (10, 122034682), (11, 110940620), (14, 87167630), (19, 64228780), (20, 61017341), (22, 55470310), (28, 43583815), (35, 34867052), (38, 32114390), (44, 27735155), (55, 22188124), (70, 17433526), (76, 16057195), (77, 15848660), (95, 12845756), (110, 11094062), (133, 9175540), (140, 8716763), (154, 7924330), (179, 6817580), (190, 6422878), (209, 5838980), (220, 5547031), (233, 5237540), (266, 4587770), (308, 3962165), (358, 3408790), (380, 3211439), (385, 3169732), (418, 2919490), (466, 2618770), (532, 2293885), (665, 1835108), (716, 1704395), (770, 1584866), (836, 1459745), (895, 1363516), (932, 1309385), (1045, 1167796), (1165, 1047508), (1253, 973940), (1330, 917554), (1463, 834140), (1540, 792433), (1631, 748220), (1790, 681758), (1969, 619780), (2090, 583898), (2330, 523754), (2506, 486970), (2563, 476140), (2660, 458777), (2926, 417070), (3262, 374110), (3401, 358820), (3580, 340879), (3938, 309890), (4180, 291949), (4427, 275660), (4660, 261877), (5012, 243485), (5126, 238070), (5852, 208535), (6265, 194788), (6524, 187055), (6802, 179410), (7315, 166828), (7876, 154945), (8155, 149644), (8854, 137830), (9845, 123956), (10252, 119035), (12530, 97394), (12815, 95228), (13604, 89705), (13783, 88540), (14630, 83414), (16310, 74822), (17005, 71764), (17708, 68915), (17941, 68020), (19690, 61978), (22135, 55132), (23807, 51260), (25060, 48697), (25630, 47614), (27566, 44270), (29260, 41707), (30989, 39380), (32620, 37411), (34010, 35882)]