291212460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21011}}^1$

素因数の和:21044

約数の個数: 144

約数和(自身を含む): 1101364992

約数和(自身を除く): 810152532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2310, 2772, 3465, 4620, 6930, 13860, 21011, 42022, 63033, 84044, 105055, 126066, 147077, 189099, 210110, 231121, 252132, 294154, 315165, 378198, 420220, 441231, 462242, 588308, 630330, 693363, 735385, 756396, 882462, 924484, 945495, 1155605, 1260660, 1323693, 1386726, 1470770, 1617847, 1764924, 1890990, 2080089, 2206155, 2311210, 2647386, 2773452, 2941540, 3235694, 3466815, 3781980, 4160178, 4412310, 4622420, 4853541, 5294772, 6471388, 6618465, 6933630, 8089235, 8320356, 8824620, 9707082, 10400445, 13236930, 13867260, 14560623, 16178470, 19414164, 20800890, 24267705, 26473860, 29121246, 32356940, 41601780, 48535410, 58242492, 72803115, 97070820, 145606230, 291212460]

約数ペア:

[(1, 291212460), (2, 145606230), (3, 97070820), (4, 72803115), (5, 58242492), (6, 48535410), (7, 41601780), (9, 32356940), (10, 29121246), (11, 26473860), (12, 24267705), (14, 20800890), (15, 19414164), (18, 16178470), (20, 14560623), (21, 13867260), (22, 13236930), (28, 10400445), (30, 9707082), (33, 8824620), (35, 8320356), (36, 8089235), (42, 6933630), (44, 6618465), (45, 6471388), (55, 5294772), (60, 4853541), (63, 4622420), (66, 4412310), (70, 4160178), (77, 3781980), (84, 3466815), (90, 3235694), (99, 2941540), (105, 2773452), (110, 2647386), (126, 2311210), (132, 2206155), (140, 2080089), (154, 1890990), (165, 1764924), (180, 1617847), (198, 1470770), (210, 1386726), (220, 1323693), (231, 1260660), (252, 1155605), (308, 945495), (315, 924484), (330, 882462), (385, 756396), (396, 735385), (420, 693363), (462, 630330), (495, 588308), (630, 462242), (660, 441231), (693, 420220), (770, 378198), (924, 315165), (990, 294154), (1155, 252132), (1260, 231121), (1386, 210110), (1540, 189099), (1980, 147077), (2310, 126066), (2772, 105055), (3465, 84044), (4620, 63033), (6930, 42022), (13860, 21011)]