1808895400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:380

約数の個数: 192

約数和(自身を含む): 4724697600

約数和(自身を除く): 2915802200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 71, 82, 100, 104, 130, 142, 164, 200, 205, 239, 260, 284, 325, 328, 355, 410, 478, 520, 533, 568, 650, 710, 820, 923, 956, 1025, 1066, 1195, 1300, 1420, 1640, 1775, 1846, 1912, 2050, 2132, 2390, 2600, 2665, 2840, 2911, 3107, 3550, 3692, 4100, 4264, 4615, 4780, 5330, 5822, 5975, 6214, 7100, 7384, 8200, 9230, 9560, 9799, 10660, 11644, 11950, 12428, 13325, 14200, 14555, 15535, 16969, 18460, 19598, 21320, 23075, 23288, 23900, 24856, 26650, 29110, 31070, 33938, 36920, 37843, 39196, 46150, 47800, 48995, 53300, 58220, 62140, 67876, 72775, 75686, 77675, 78392, 84845, 92300, 97990, 106600, 116440, 124280, 127387, 135752, 145550, 151372, 155350, 169690, 184600, 189215, 195980, 220597, 244975, 254774, 291100, 302744, 310700, 339380, 378430, 391960, 424225, 441194, 489950, 509548, 582200, 621400, 636935, 678760, 695729, 756860, 848450, 882388, 946075, 979900, 1019096, 1102985, 1273870, 1391458, 1513720, 1696900, 1764776, 1892150, 1959800, 2205970, 2547740, 2782916, 3184675, 3393800, 3478645, 3784300, 4411940, 5095480, 5514925, 5565832, 6369350, 6957290, 7568600, 8823880, 9044477, 11029850, 12738700, 13914580, 17393225, 18088954, 22059700, 25477400, 27829160, 34786450, 36177908, 44119400, 45222385, 69572900, 72355816, 90444770, 139145800, 180889540, 226111925, 361779080, 452223850, 904447700, 1808895400]

約数ペア:

[(1, 1808895400), (2, 904447700), (4, 452223850), (5, 361779080), (8, 226111925), (10, 180889540), (13, 139145800), (20, 90444770), (25, 72355816), (26, 69572900), (40, 45222385), (41, 44119400), (50, 36177908), (52, 34786450), (65, 27829160), (71, 25477400), (82, 22059700), (100, 18088954), (104, 17393225), (130, 13914580), (142, 12738700), (164, 11029850), (200, 9044477), (205, 8823880), (239, 7568600), (260, 6957290), (284, 6369350), (325, 5565832), (328, 5514925), (355, 5095480), (410, 4411940), (478, 3784300), (520, 3478645), (533, 3393800), (568, 3184675), (650, 2782916), (710, 2547740), (820, 2205970), (923, 1959800), (956, 1892150), (1025, 1764776), (1066, 1696900), (1195, 1513720), (1300, 1391458), (1420, 1273870), (1640, 1102985), (1775, 1019096), (1846, 979900), (1912, 946075), (2050, 882388), (2132, 848450), (2390, 756860), (2600, 695729), (2665, 678760), (2840, 636935), (2911, 621400), (3107, 582200), (3550, 509548), (3692, 489950), (4100, 441194), (4264, 424225), (4615, 391960), (4780, 378430), (5330, 339380), (5822, 310700), (5975, 302744), (6214, 291100), (7100, 254774), (7384, 244975), (8200, 220597), (9230, 195980), (9560, 189215), (9799, 184600), (10660, 169690), (11644, 155350), (11950, 151372), (12428, 145550), (13325, 135752), (14200, 127387), (14555, 124280), (15535, 116440), (16969, 106600), (18460, 97990), (19598, 92300), (21320, 84845), (23075, 78392), (23288, 77675), (23900, 75686), (24856, 72775), (26650, 67876), (29110, 62140), (31070, 58220), (33938, 53300), (36920, 48995), (37843, 47800), (39196, 46150)]