21700440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:374

約数の個数: 128

約数和(自身を含む): 73612800

約数和(自身を除く): 51912360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 270, 283, 284, 355, 360, 426, 540, 566, 568, 639, 710, 849, 852, 1065, 1080, 1132, 1278, 1415, 1420, 1698, 1704, 1917, 2130, 2264, 2547, 2556, 2830, 2840, 3195, 3396, 3834, 4245, 4260, 5094, 5112, 5660, 6390, 6792, 7641, 7668, 8490, 8520, 9585, 10188, 11320, 12735, 12780, 15282, 15336, 16980, 19170, 20093, 20376, 25470, 25560, 30564, 33960, 38205, 38340, 40186, 50940, 60279, 61128, 76410, 76680, 80372, 100465, 101880, 120558, 152820, 160744, 180837, 200930, 241116, 301395, 305640, 361674, 401860, 482232, 542511, 602790, 723348, 803720, 904185, 1085022, 1205580, 1446696, 1808370, 2170044, 2411160, 2712555, 3616740, 4340088, 5425110, 7233480, 10850220, 21700440]

約数ペア:

[(1, 21700440), (2, 10850220), (3, 7233480), (4, 5425110), (5, 4340088), (6, 3616740), (8, 2712555), (9, 2411160), (10, 2170044), (12, 1808370), (15, 1446696), (18, 1205580), (20, 1085022), (24, 904185), (27, 803720), (30, 723348), (36, 602790), (40, 542511), (45, 482232), (54, 401860), (60, 361674), (71, 305640), (72, 301395), (90, 241116), (108, 200930), (120, 180837), (135, 160744), (142, 152820), (180, 120558), (213, 101880), (216, 100465), (270, 80372), (283, 76680), (284, 76410), (355, 61128), (360, 60279), (426, 50940), (540, 40186), (566, 38340), (568, 38205), (639, 33960), (710, 30564), (849, 25560), (852, 25470), (1065, 20376), (1080, 20093), (1132, 19170), (1278, 16980), (1415, 15336), (1420, 15282), (1698, 12780), (1704, 12735), (1917, 11320), (2130, 10188), (2264, 9585), (2547, 8520), (2556, 8490), (2830, 7668), (2840, 7641), (3195, 6792), (3396, 6390), (3834, 5660), (4245, 5112), (4260, 5094)]