644357340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{773}}^1$

素因数の和:1220

約数の個数: 144

約数和(自身を含む): 2140066656

約数和(自身を除く): 1495709316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 421, 495, 660, 773, 842, 990, 1263, 1546, 1684, 1980, 2105, 2319, 2526, 3092, 3789, 3865, 4210, 4631, 4638, 5052, 6315, 6957, 7578, 7730, 8420, 8503, 9262, 9276, 11595, 12630, 13893, 13914, 15156, 15460, 17006, 18524, 18945, 23155, 23190, 25260, 25509, 27786, 27828, 34012, 34785, 37890, 41679, 42515, 46310, 46380, 51018, 55572, 69465, 69570, 75780, 76527, 83358, 85030, 92620, 102036, 127545, 138930, 139140, 153054, 166716, 170060, 208395, 255090, 277860, 306108, 325433, 382635, 416790, 510180, 650866, 765270, 833580, 976299, 1301732, 1530540, 1627165, 1952598, 2928897, 3254330, 3579763, 3905196, 4881495, 5857794, 6508660, 7159526, 9762990, 10739289, 11715588, 14319052, 14644485, 17898815, 19525980, 21478578, 29288970, 32217867, 35797630, 42957156, 53696445, 58577940, 64435734, 71595260, 107392890, 128871468, 161089335, 214785780, 322178670, 644357340]

約数ペア:

[(1, 644357340), (2, 322178670), (3, 214785780), (4, 161089335), (5, 128871468), (6, 107392890), (9, 71595260), (10, 64435734), (11, 58577940), (12, 53696445), (15, 42957156), (18, 35797630), (20, 32217867), (22, 29288970), (30, 21478578), (33, 19525980), (36, 17898815), (44, 14644485), (45, 14319052), (55, 11715588), (60, 10739289), (66, 9762990), (90, 7159526), (99, 6508660), (110, 5857794), (132, 4881495), (165, 3905196), (180, 3579763), (198, 3254330), (220, 2928897), (330, 1952598), (396, 1627165), (421, 1530540), (495, 1301732), (660, 976299), (773, 833580), (842, 765270), (990, 650866), (1263, 510180), (1546, 416790), (1684, 382635), (1980, 325433), (2105, 306108), (2319, 277860), (2526, 255090), (3092, 208395), (3789, 170060), (3865, 166716), (4210, 153054), (4631, 139140), (4638, 138930), (5052, 127545), (6315, 102036), (6957, 92620), (7578, 85030), (7730, 83358), (8420, 76527), (8503, 75780), (9262, 69570), (9276, 69465), (11595, 55572), (12630, 51018), (13893, 46380), (13914, 46310), (15156, 42515), (15460, 41679), (17006, 37890), (18524, 34785), (18945, 34012), (23155, 27828), (23190, 27786), (25260, 25509)]