205345980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{162973}}^1$

素因数の和:162995

約数の個数: 72

約数和(自身を含む): 711870432

約数和(自身を除く): 506524452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 162973, 325946, 488919, 651892, 814865, 977838, 1140811, 1466757, 1629730, 1955676, 2281622, 2444595, 2933514, 3259460, 3422433, 4563244, 4889190, 5704055, 5867028, 6844866, 7333785, 9778380, 10267299, 11408110, 13689732, 14667570, 17112165, 20534598, 22816220, 29335140, 34224330, 41069196, 51336495, 68448660, 102672990, 205345980]

約数ペア:

[(1, 205345980), (2, 102672990), (3, 68448660), (4, 51336495), (5, 41069196), (6, 34224330), (7, 29335140), (9, 22816220), (10, 20534598), (12, 17112165), (14, 14667570), (15, 13689732), (18, 11408110), (20, 10267299), (21, 9778380), (28, 7333785), (30, 6844866), (35, 5867028), (36, 5704055), (42, 4889190), (45, 4563244), (60, 3422433), (63, 3259460), (70, 2933514), (84, 2444595), (90, 2281622), (105, 1955676), (126, 1629730), (140, 1466757), (180, 1140811), (210, 977838), (252, 814865), (315, 651892), (420, 488919), (630, 325946), (1260, 162973)]