221656320

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:369

約数の個数: 216

約数和(自身を含む): 780579072

約数和(自身を除く): 558922752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 128, 142, 144, 160, 180, 192, 213, 240, 256, 271, 284, 288, 320, 355, 360, 384, 426, 480, 542, 568, 576, 639, 640, 710, 720, 768, 813, 852, 960, 1065, 1084, 1136, 1152, 1278, 1280, 1355, 1420, 1440, 1626, 1704, 1920, 2130, 2168, 2272, 2304, 2439, 2556, 2710, 2840, 2880, 3195, 3252, 3408, 3840, 4065, 4260, 4336, 4544, 4878, 5112, 5420, 5680, 5760, 6390, 6504, 6816, 8130, 8520, 8672, 9088, 9756, 10224, 10840, 11360, 11520, 12195, 12780, 13008, 13632, 16260, 17040, 17344, 18176, 19241, 19512, 20448, 21680, 22720, 24390, 25560, 26016, 27264, 32520, 34080, 34688, 38482, 39024, 40896, 43360, 45440, 48780, 51120, 52032, 54528, 57723, 65040, 68160, 69376, 76964, 78048, 81792, 86720, 90880, 96205, 97560, 102240, 104064, 115446, 130080, 136320, 153928, 156096, 163584, 173169, 173440, 192410, 195120, 204480, 208128, 230892, 260160, 272640, 288615, 307856, 312192, 346338, 346880, 384820, 390240, 408960, 461784, 520320, 577230, 615712, 624384, 692676, 769640, 780480, 817920, 865845, 923568, 1040640, 1154460, 1231424, 1385352, 1539280, 1560960, 1731690, 1847136, 2308920, 2462848, 2770704, 3078560, 3121920, 3463380, 3694272, 4617840, 4925696, 5541408, 6157120, 6926760, 7388544, 9235680, 11082816, 12314240, 13853520, 14777088, 18471360, 22165632, 24628480, 27707040, 36942720, 44331264, 55414080, 73885440, 110828160, 221656320]

約数ペア:

[(1, 221656320), (2, 110828160), (3, 73885440), (4, 55414080), (5, 44331264), (6, 36942720), (8, 27707040), (9, 24628480), (10, 22165632), (12, 18471360), (15, 14777088), (16, 13853520), (18, 12314240), (20, 11082816), (24, 9235680), (30, 7388544), (32, 6926760), (36, 6157120), (40, 5541408), (45, 4925696), (48, 4617840), (60, 3694272), (64, 3463380), (71, 3121920), (72, 3078560), (80, 2770704), (90, 2462848), (96, 2308920), (120, 1847136), (128, 1731690), (142, 1560960), (144, 1539280), (160, 1385352), (180, 1231424), (192, 1154460), (213, 1040640), (240, 923568), (256, 865845), (271, 817920), (284, 780480), (288, 769640), (320, 692676), (355, 624384), (360, 615712), (384, 577230), (426, 520320), (480, 461784), (542, 408960), (568, 390240), (576, 384820), (639, 346880), (640, 346338), (710, 312192), (720, 307856), (768, 288615), (813, 272640), (852, 260160), (960, 230892), (1065, 208128), (1084, 204480), (1136, 195120), (1152, 192410), (1278, 173440), (1280, 173169), (1355, 163584), (1420, 156096), (1440, 153928), (1626, 136320), (1704, 130080), (1920, 115446), (2130, 104064), (2168, 102240), (2272, 97560), (2304, 96205), (2439, 90880), (2556, 86720), (2710, 81792), (2840, 78048), (2880, 76964), (3195, 69376), (3252, 68160), (3408, 65040), (3840, 57723), (4065, 54528), (4260, 52032), (4336, 51120), (4544, 48780), (4878, 45440), (5112, 43360), (5420, 40896), (5680, 39024), (5760, 38482), (6390, 34688), (6504, 34080), (6816, 32520), (8130, 27264), (8520, 26016), (8672, 25560), (9088, 24390), (9756, 22720), (10224, 21680), (10840, 20448), (11360, 19512), (11520, 19241), (12195, 18176), (12780, 17344), (13008, 17040), (13632, 16260)]