21380994720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{511997}}^1$

素因数の和:512047

約数の個数: 144

約数和(自身を含む): 75478745160

約数和(自身を除く): 54097750440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 464, 480, 522, 580, 696, 720, 870, 928, 1044, 1160, 1305, 1392, 1440, 1740, 2088, 2320, 2610, 2784, 3480, 4176, 4640, 5220, 6960, 8352, 10440, 13920, 20880, 41760, 511997, 1023994, 1535991, 2047988, 2559985, 3071982, 4095976, 4607973, 5119970, 6143964, 7679955, 8191952, 9215946, 10239940, 12287928, 14847913, 15359910, 16383904, 18431892, 20479880, 23039865, 24575856, 29695826, 30719820, 36863784, 40959760, 44543739, 46079730, 49151712, 59391652, 61439640, 73727568, 74239565, 81919520, 89087478, 92159460, 118783304, 122879280, 133631217, 147455136, 148479130, 178174956, 184318920, 222718695, 237566608, 245758560, 267262434, 296958260, 356349912, 368637840, 445437390, 475133216, 534524868, 593916520, 668156085, 712699824, 737275680, 890874780, 1069049736, 1187833040, 1336312170, 1425399648, 1781749560, 2138099472, 2375666080, 2672624340, 3563499120, 4276198944, 5345248680, 7126998240, 10690497360, 21380994720]

約数ペア:

[(1, 21380994720), (2, 10690497360), (3, 7126998240), (4, 5345248680), (5, 4276198944), (6, 3563499120), (8, 2672624340), (9, 2375666080), (10, 2138099472), (12, 1781749560), (15, 1425399648), (16, 1336312170), (18, 1187833040), (20, 1069049736), (24, 890874780), (29, 737275680), (30, 712699824), (32, 668156085), (36, 593916520), (40, 534524868), (45, 475133216), (48, 445437390), (58, 368637840), (60, 356349912), (72, 296958260), (80, 267262434), (87, 245758560), (90, 237566608), (96, 222718695), (116, 184318920), (120, 178174956), (144, 148479130), (145, 147455136), (160, 133631217), (174, 122879280), (180, 118783304), (232, 92159460), (240, 89087478), (261, 81919520), (288, 74239565), (290, 73727568), (348, 61439640), (360, 59391652), (435, 49151712), (464, 46079730), (480, 44543739), (522, 40959760), (580, 36863784), (696, 30719820), (720, 29695826), (870, 24575856), (928, 23039865), (1044, 20479880), (1160, 18431892), (1305, 16383904), (1392, 15359910), (1440, 14847913), (1740, 12287928), (2088, 10239940), (2320, 9215946), (2610, 8191952), (2784, 7679955), (3480, 6143964), (4176, 5119970), (4640, 4607973), (5220, 4095976), (6960, 3071982), (8352, 2559985), (10440, 2047988), (13920, 1535991), (20880, 1023994), (41760, 511997)]