20914740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1$

素因数の和:539

約数の個数: 192

約数和(自身を含む): 81285120

約数和(自身を除く): 60370380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 330, 378, 385, 396, 420, 462, 495, 503, 540, 594, 630, 660, 693, 756, 770, 924, 945, 990, 1006, 1155, 1188, 1260, 1386, 1485, 1509, 1540, 1890, 1980, 2012, 2079, 2310, 2515, 2772, 2970, 3018, 3465, 3521, 3780, 4158, 4527, 4620, 5030, 5533, 5940, 6036, 6930, 7042, 7545, 8316, 9054, 10060, 10395, 10563, 11066, 13581, 13860, 14084, 15090, 16599, 17605, 18108, 20790, 21126, 22132, 22635, 27162, 27665, 30180, 31689, 33198, 35210, 38731, 41580, 42252, 45270, 49797, 52815, 54324, 55330, 63378, 66396, 67905, 70420, 77462, 82995, 90540, 95067, 99594, 105630, 110660, 116193, 126756, 135810, 149391, 154924, 158445, 165990, 190134, 193655, 199188, 211260, 232386, 248985, 271620, 298782, 316890, 331980, 348579, 380268, 387310, 464772, 475335, 497970, 580965, 597564, 633780, 697158, 746955, 774620, 950670, 995940, 1045737, 1161930, 1394316, 1493910, 1742895, 1901340, 2091474, 2323860, 2987820, 3485790, 4182948, 5228685, 6971580, 10457370, 20914740]

約数ペア:

[(1, 20914740), (2, 10457370), (3, 6971580), (4, 5228685), (5, 4182948), (6, 3485790), (7, 2987820), (9, 2323860), (10, 2091474), (11, 1901340), (12, 1742895), (14, 1493910), (15, 1394316), (18, 1161930), (20, 1045737), (21, 995940), (22, 950670), (27, 774620), (28, 746955), (30, 697158), (33, 633780), (35, 597564), (36, 580965), (42, 497970), (44, 475335), (45, 464772), (54, 387310), (55, 380268), (60, 348579), (63, 331980), (66, 316890), (70, 298782), (77, 271620), (84, 248985), (90, 232386), (99, 211260), (105, 199188), (108, 193655), (110, 190134), (126, 165990), (132, 158445), (135, 154924), (140, 149391), (154, 135810), (165, 126756), (180, 116193), (189, 110660), (198, 105630), (210, 99594), (220, 95067), (231, 90540), (252, 82995), (270, 77462), (297, 70420), (308, 67905), (315, 66396), (330, 63378), (378, 55330), (385, 54324), (396, 52815), (420, 49797), (462, 45270), (495, 42252), (503, 41580), (540, 38731), (594, 35210), (630, 33198), (660, 31689), (693, 30180), (756, 27665), (770, 27162), (924, 22635), (945, 22132), (990, 21126), (1006, 20790), (1155, 18108), (1188, 17605), (1260, 16599), (1386, 15090), (1485, 14084), (1509, 13860), (1540, 13581), (1890, 11066), (1980, 10563), (2012, 10395), (2079, 10060), (2310, 9054), (2515, 8316), (2772, 7545), (2970, 7042), (3018, 6930), (3465, 6036), (3521, 5940), (3780, 5533), (4158, 5030), (4527, 4620)]