388889148440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{126307}}^1$

素因数の和:126553

約数の個数: 128

約数和(自身を含む): 977805803520

約数和(自身を除く): 588916655080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 191, 248, 260, 310, 382, 403, 520, 620, 764, 806, 955, 1240, 1528, 1612, 1910, 2015, 2483, 3224, 3820, 4030, 4966, 5921, 7640, 8060, 9932, 11842, 12415, 16120, 19864, 23684, 24830, 29605, 47368, 49660, 59210, 76973, 99320, 118420, 126307, 153946, 236840, 252614, 307892, 384865, 505228, 615784, 631535, 769730, 1010456, 1263070, 1539460, 1641991, 2526140, 3078920, 3283982, 3915517, 5052280, 6567964, 7831034, 8209955, 13135928, 15662068, 16419910, 19577585, 24124637, 31324136, 32839820, 39155170, 48249274, 50901721, 65679640, 78310340, 96498548, 101803442, 120623185, 156620680, 192997096, 203606884, 241246370, 254508605, 313620281, 407213768, 482492740, 509017210, 627240562, 747863747, 964985480, 1018034420, 1254481124, 1495727494, 1568101405, 2036068840, 2508962248, 2991454988, 3136202810, 3739318735, 5982909976, 6272405620, 7478637470, 9722228711, 12544811240, 14957274940, 19444457422, 29914549880, 38888914844, 48611143555, 77777829688, 97222287110, 194444574220, 388889148440]

約数ペア:

[(1, 388889148440), (2, 194444574220), (4, 97222287110), (5, 77777829688), (8, 48611143555), (10, 38888914844), (13, 29914549880), (20, 19444457422), (26, 14957274940), (31, 12544811240), (40, 9722228711), (52, 7478637470), (62, 6272405620), (65, 5982909976), (104, 3739318735), (124, 3136202810), (130, 2991454988), (155, 2508962248), (191, 2036068840), (248, 1568101405), (260, 1495727494), (310, 1254481124), (382, 1018034420), (403, 964985480), (520, 747863747), (620, 627240562), (764, 509017210), (806, 482492740), (955, 407213768), (1240, 313620281), (1528, 254508605), (1612, 241246370), (1910, 203606884), (2015, 192997096), (2483, 156620680), (3224, 120623185), (3820, 101803442), (4030, 96498548), (4966, 78310340), (5921, 65679640), (7640, 50901721), (8060, 48249274), (9932, 39155170), (11842, 32839820), (12415, 31324136), (16120, 24124637), (19864, 19577585), (23684, 16419910), (24830, 15662068), (29605, 13135928), (47368, 8209955), (49660, 7831034), (59210, 6567964), (76973, 5052280), (99320, 3915517), (118420, 3283982), (126307, 3078920), (153946, 2526140), (236840, 1641991), (252614, 1539460), (307892, 1263070), (384865, 1010456), (505228, 769730), (615784, 631535)]