256408320

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{9539}}^1$

素因数の和:9570

約数の個数: 144

約数和(自身を含む): 935988480

約数和(自身を除く): 679580160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 9539, 13440, 19078, 26880, 28617, 38156, 47695, 57234, 66773, 76312, 95390, 114468, 133546, 143085, 152624, 190780, 200319, 228936, 267092, 286170, 305248, 333865, 381560, 400638, 457872, 534184, 572340, 610496, 667730, 763120, 801276, 915744, 1001595, 1068368, 1144680, 1220992, 1335460, 1526240, 1602552, 1831488, 2003190, 2136736, 2289360, 2441984, 2670920, 3052480, 3205104, 3662976, 4006380, 4273472, 4578720, 5341840, 6104960, 6410208, 7325952, 8012760, 8546944, 9157440, 10683680, 12209920, 12820416, 16025520, 17093888, 18314880, 21367360, 25640832, 32051040, 36629760, 42734720, 51281664, 64102080, 85469440, 128204160, 256408320]

約数ペア:

[(1, 256408320), (2, 128204160), (3, 85469440), (4, 64102080), (5, 51281664), (6, 42734720), (7, 36629760), (8, 32051040), (10, 25640832), (12, 21367360), (14, 18314880), (15, 17093888), (16, 16025520), (20, 12820416), (21, 12209920), (24, 10683680), (28, 9157440), (30, 8546944), (32, 8012760), (35, 7325952), (40, 6410208), (42, 6104960), (48, 5341840), (56, 4578720), (60, 4273472), (64, 4006380), (70, 3662976), (80, 3205104), (84, 3052480), (96, 2670920), (105, 2441984), (112, 2289360), (120, 2136736), (128, 2003190), (140, 1831488), (160, 1602552), (168, 1526240), (192, 1335460), (210, 1220992), (224, 1144680), (240, 1068368), (256, 1001595), (280, 915744), (320, 801276), (336, 763120), (384, 667730), (420, 610496), (448, 572340), (480, 534184), (560, 457872), (640, 400638), (672, 381560), (768, 333865), (840, 305248), (896, 286170), (960, 267092), (1120, 228936), (1280, 200319), (1344, 190780), (1680, 152624), (1792, 143085), (1920, 133546), (2240, 114468), (2688, 95390), (3360, 76312), (3840, 66773), (4480, 57234), (5376, 47695), (6720, 38156), (8960, 28617), (9539, 26880), (13440, 19078)]