1640781660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{1307}}^1$

素因数の和:1401

約数の個数: 192

約数和(自身を含む): 5449651200

約数和(自身を除く): 3808869540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 61, 70, 84, 98, 105, 122, 140, 147, 183, 196, 210, 244, 245, 294, 305, 343, 366, 420, 427, 490, 588, 610, 686, 732, 735, 854, 915, 980, 1029, 1220, 1281, 1307, 1372, 1470, 1708, 1715, 1830, 2058, 2135, 2562, 2614, 2940, 2989, 3430, 3660, 3921, 4116, 4270, 5124, 5145, 5228, 5978, 6405, 6535, 6860, 7842, 8540, 8967, 9149, 10290, 11956, 12810, 13070, 14945, 15684, 17934, 18298, 19605, 20580, 20923, 25620, 26140, 27447, 29890, 35868, 36596, 39210, 41846, 44835, 45745, 54894, 59780, 62769, 64043, 78420, 79727, 83692, 89670, 91490, 104615, 109788, 125538, 128086, 137235, 159454, 179340, 182980, 192129, 209230, 239181, 251076, 256172, 274470, 313845, 318908, 320215, 384258, 398635, 418460, 448301, 478362, 548940, 558089, 627690, 640430, 768516, 797270, 896602, 956724, 960645, 1116178, 1195905, 1255380, 1280860, 1344903, 1594540, 1674267, 1793204, 1921290, 2232356, 2241505, 2391810, 2689806, 2790445, 3348534, 3842580, 3906623, 4483010, 4783620, 5379612, 5580890, 6697068, 6724515, 7813246, 8371335, 8966020, 11161780, 11719869, 13449030, 15626492, 16742670, 19533115, 23439738, 26898060, 27346361, 33485340, 39066230, 46879476, 54692722, 58599345, 78132460, 82039083, 109385444, 117198690, 136731805, 164078166, 234397380, 273463610, 328156332, 410195415, 546927220, 820390830, 1640781660]

約数ペア:

[(1, 1640781660), (2, 820390830), (3, 546927220), (4, 410195415), (5, 328156332), (6, 273463610), (7, 234397380), (10, 164078166), (12, 136731805), (14, 117198690), (15, 109385444), (20, 82039083), (21, 78132460), (28, 58599345), (30, 54692722), (35, 46879476), (42, 39066230), (49, 33485340), (60, 27346361), (61, 26898060), (70, 23439738), (84, 19533115), (98, 16742670), (105, 15626492), (122, 13449030), (140, 11719869), (147, 11161780), (183, 8966020), (196, 8371335), (210, 7813246), (244, 6724515), (245, 6697068), (294, 5580890), (305, 5379612), (343, 4783620), (366, 4483010), (420, 3906623), (427, 3842580), (490, 3348534), (588, 2790445), (610, 2689806), (686, 2391810), (732, 2241505), (735, 2232356), (854, 1921290), (915, 1793204), (980, 1674267), (1029, 1594540), (1220, 1344903), (1281, 1280860), (1307, 1255380), (1372, 1195905), (1470, 1116178), (1708, 960645), (1715, 956724), (1830, 896602), (2058, 797270), (2135, 768516), (2562, 640430), (2614, 627690), (2940, 558089), (2989, 548940), (3430, 478362), (3660, 448301), (3921, 418460), (4116, 398635), (4270, 384258), (5124, 320215), (5145, 318908), (5228, 313845), (5978, 274470), (6405, 256172), (6535, 251076), (6860, 239181), (7842, 209230), (8540, 192129), (8967, 182980), (9149, 179340), (10290, 159454), (11956, 137235), (12810, 128086), (13070, 125538), (14945, 109788), (15684, 104615), (17934, 91490), (18298, 89670), (19605, 83692), (20580, 79727), (20923, 78420), (25620, 64043), (26140, 62769), (27447, 59780), (29890, 54894), (35868, 45745), (36596, 44835), (39210, 41846)]