256326400

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:379

約数の個数: 162

約数和(自身を含む): 699475196

約数和(自身を除く): 443148796

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 121, 128, 160, 176, 200, 220, 242, 256, 275, 320, 331, 352, 400, 440, 484, 550, 605, 640, 662, 704, 800, 880, 968, 1100, 1210, 1280, 1324, 1408, 1600, 1655, 1760, 1936, 2200, 2420, 2648, 2816, 3025, 3200, 3310, 3520, 3641, 3872, 4400, 4840, 5296, 6050, 6400, 6620, 7040, 7282, 7744, 8275, 8800, 9680, 10592, 12100, 13240, 14080, 14564, 15488, 16550, 17600, 18205, 19360, 21184, 24200, 26480, 29128, 30976, 33100, 35200, 36410, 38720, 40051, 42368, 48400, 52960, 58256, 66200, 70400, 72820, 77440, 80102, 84736, 91025, 96800, 105920, 116512, 132400, 145640, 154880, 160204, 182050, 193600, 200255, 211840, 233024, 264800, 291280, 320408, 364100, 387200, 400510, 423680, 466048, 529600, 582560, 640816, 728200, 774400, 801020, 932096, 1001275, 1059200, 1165120, 1281632, 1456400, 1602040, 2002550, 2118400, 2330240, 2563264, 2912800, 3204080, 4005100, 4660480, 5126528, 5825600, 6408160, 8010200, 10253056, 11651200, 12816320, 16020400, 23302400, 25632640, 32040800, 51265280, 64081600, 128163200, 256326400]

約数ペア:

[(1, 256326400), (2, 128163200), (4, 64081600), (5, 51265280), (8, 32040800), (10, 25632640), (11, 23302400), (16, 16020400), (20, 12816320), (22, 11651200), (25, 10253056), (32, 8010200), (40, 6408160), (44, 5825600), (50, 5126528), (55, 4660480), (64, 4005100), (80, 3204080), (88, 2912800), (100, 2563264), (110, 2330240), (121, 2118400), (128, 2002550), (160, 1602040), (176, 1456400), (200, 1281632), (220, 1165120), (242, 1059200), (256, 1001275), (275, 932096), (320, 801020), (331, 774400), (352, 728200), (400, 640816), (440, 582560), (484, 529600), (550, 466048), (605, 423680), (640, 400510), (662, 387200), (704, 364100), (800, 320408), (880, 291280), (968, 264800), (1100, 233024), (1210, 211840), (1280, 200255), (1324, 193600), (1408, 182050), (1600, 160204), (1655, 154880), (1760, 145640), (1936, 132400), (2200, 116512), (2420, 105920), (2648, 96800), (2816, 91025), (3025, 84736), (3200, 80102), (3310, 77440), (3520, 72820), (3641, 70400), (3872, 66200), (4400, 58256), (4840, 52960), (5296, 48400), (6050, 42368), (6400, 40051), (6620, 38720), (7040, 36410), (7282, 35200), (7744, 33100), (8275, 30976), (8800, 29128), (9680, 26480), (10592, 24200), (12100, 21184), (13240, 19360), (14080, 18205), (14564, 17600), (15488, 16550)]