1621904940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{863}}^1$

素因数の和:1128

約数の個数: 144

約数和(自身を含む): 5043886848

約数和(自身を除く): 3421981908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 197, 212, 265, 318, 394, 477, 530, 591, 636, 788, 795, 863, 954, 985, 1060, 1182, 1590, 1726, 1773, 1908, 1970, 2364, 2385, 2589, 2955, 3180, 3452, 3546, 3940, 4315, 4770, 5178, 5910, 7092, 7767, 8630, 8865, 9540, 10356, 10441, 11820, 12945, 15534, 17260, 17730, 20882, 25890, 31068, 31323, 35460, 38835, 41764, 45739, 51780, 52205, 62646, 77670, 91478, 93969, 104410, 125292, 137217, 155340, 156615, 170011, 182956, 187938, 208820, 228695, 274434, 313230, 340022, 375876, 411651, 457390, 469845, 510033, 548868, 626460, 680044, 686085, 823302, 850055, 914780, 939690, 1020066, 1372170, 1530099, 1646604, 1700110, 1879380, 2040132, 2058255, 2550165, 2744340, 3060198, 3400220, 4116510, 5100330, 6120396, 7650495, 8233020, 9010583, 10200660, 15300990, 18021166, 27031749, 30601980, 36042332, 45052915, 54063498, 81095247, 90105830, 108126996, 135158745, 162190494, 180211660, 270317490, 324380988, 405476235, 540634980, 810952470, 1621904940]

約数ペア:

[(1, 1621904940), (2, 810952470), (3, 540634980), (4, 405476235), (5, 324380988), (6, 270317490), (9, 180211660), (10, 162190494), (12, 135158745), (15, 108126996), (18, 90105830), (20, 81095247), (30, 54063498), (36, 45052915), (45, 36042332), (53, 30601980), (60, 27031749), (90, 18021166), (106, 15300990), (159, 10200660), (180, 9010583), (197, 8233020), (212, 7650495), (265, 6120396), (318, 5100330), (394, 4116510), (477, 3400220), (530, 3060198), (591, 2744340), (636, 2550165), (788, 2058255), (795, 2040132), (863, 1879380), (954, 1700110), (985, 1646604), (1060, 1530099), (1182, 1372170), (1590, 1020066), (1726, 939690), (1773, 914780), (1908, 850055), (1970, 823302), (2364, 686085), (2385, 680044), (2589, 626460), (2955, 548868), (3180, 510033), (3452, 469845), (3546, 457390), (3940, 411651), (4315, 375876), (4770, 340022), (5178, 313230), (5910, 274434), (7092, 228695), (7767, 208820), (8630, 187938), (8865, 182956), (9540, 170011), (10356, 156615), (10441, 155340), (11820, 137217), (12945, 125292), (15534, 104410), (17260, 93969), (17730, 91478), (20882, 77670), (25890, 62646), (31068, 52205), (31323, 51780), (35460, 45739), (38835, 41764)]