208471620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7081

約数の個数: 96

約数和(自身を含む): 676601856

約数和(自身を除く): 468130236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2982, 4260, 4970, 5964, 6991, 7455, 9940, 13982, 14910, 20973, 27964, 29820, 34955, 41946, 48937, 69910, 83892, 97874, 104865, 139820, 146811, 195748, 209730, 244685, 293622, 419460, 489370, 496361, 587244, 734055, 978740, 992722, 1468110, 1489083, 1985444, 2481805, 2936220, 2978166, 3474527, 4963610, 5956332, 6949054, 7445415, 9927220, 10423581, 13898108, 14890830, 17372635, 20847162, 29781660, 34745270, 41694324, 52117905, 69490540, 104235810, 208471620]

約数ペア:

[(1, 208471620), (2, 104235810), (3, 69490540), (4, 52117905), (5, 41694324), (6, 34745270), (7, 29781660), (10, 20847162), (12, 17372635), (14, 14890830), (15, 13898108), (20, 10423581), (21, 9927220), (28, 7445415), (30, 6949054), (35, 5956332), (42, 4963610), (60, 3474527), (70, 2978166), (71, 2936220), (84, 2481805), (105, 1985444), (140, 1489083), (142, 1468110), (210, 992722), (213, 978740), (284, 734055), (355, 587244), (420, 496361), (426, 489370), (497, 419460), (710, 293622), (852, 244685), (994, 209730), (1065, 195748), (1420, 146811), (1491, 139820), (1988, 104865), (2130, 97874), (2485, 83892), (2982, 69910), (4260, 48937), (4970, 41946), (5964, 34955), (6991, 29820), (7455, 27964), (9940, 20973), (13982, 14910)]