420044520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7043}}^1$

素因数の和:7135

約数の個数: 128

約数和(自身を含む): 1460643840

約数和(自身を除く): 1040599320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4970, 5964, 7043, 7455, 8520, 9940, 11928, 14086, 14910, 19880, 21129, 28172, 29820, 35215, 42258, 49301, 56344, 59640, 70430, 84516, 98602, 105645, 140860, 147903, 169032, 197204, 211290, 246505, 281720, 295806, 394408, 422580, 493010, 500053, 591612, 739515, 845160, 986020, 1000106, 1183224, 1479030, 1500159, 1972040, 2000212, 2500265, 2958060, 3000318, 3500371, 4000424, 5000530, 5916120, 6000636, 7000742, 7500795, 10001060, 10501113, 12001272, 14001484, 15001590, 17501855, 20002120, 21002226, 28002968, 30003180, 35003710, 42004452, 52505565, 60006360, 70007420, 84008904, 105011130, 140014840, 210022260, 420044520]

約数ペア:

[(1, 420044520), (2, 210022260), (3, 140014840), (4, 105011130), (5, 84008904), (6, 70007420), (7, 60006360), (8, 52505565), (10, 42004452), (12, 35003710), (14, 30003180), (15, 28002968), (20, 21002226), (21, 20002120), (24, 17501855), (28, 15001590), (30, 14001484), (35, 12001272), (40, 10501113), (42, 10001060), (56, 7500795), (60, 7000742), (70, 6000636), (71, 5916120), (84, 5000530), (105, 4000424), (120, 3500371), (140, 3000318), (142, 2958060), (168, 2500265), (210, 2000212), (213, 1972040), (280, 1500159), (284, 1479030), (355, 1183224), (420, 1000106), (426, 986020), (497, 845160), (568, 739515), (710, 591612), (840, 500053), (852, 493010), (994, 422580), (1065, 394408), (1420, 295806), (1491, 281720), (1704, 246505), (1988, 211290), (2130, 197204), (2485, 169032), (2840, 147903), (2982, 140860), (3976, 105645), (4260, 98602), (4970, 84516), (5964, 70430), (7043, 59640), (7455, 56344), (8520, 49301), (9940, 42258), (11928, 35215), (14086, 29820), (14910, 28172), (19880, 21129)]