161497980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{128173}}^1$

素因数の和:128195

約数の個数: 72

約数和(自身を含む): 559864032

約数和(自身を除く): 398366052

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, 128173, 256346, 384519, 512692, 640865, 769038, 897211, 1153557, 1281730, 1538076, 1794422, 1922595, 2307114, 2563460, 2691633, 3588844, 3845190, 4486055, 4614228, 5383266, 5767785, 7690380, 8074899, 8972110, 10766532, 11535570, 13458165, 16149798, 17944220, 23071140, 26916330, 32299596, 40374495, 53832660, 80748990, 161497980]

約数ペア:

[(1, 161497980), (2, 80748990), (3, 53832660), (4, 40374495), (5, 32299596), (6, 26916330), (7, 23071140), (9, 17944220), (10, 16149798), (12, 13458165), (14, 11535570), (15, 10766532), (18, 8972110), (20, 8074899), (21, 7690380), (28, 5767785), (30, 5383266), (35, 4614228), (36, 4486055), (42, 3845190), (45, 3588844), (60, 2691633), (63, 2563460), (70, 2307114), (84, 1922595), (90, 1794422), (105, 1538076), (126, 1281730), (140, 1153557), (180, 897211), (210, 769038), (252, 640865), (315, 512692), (420, 384519), (630, 256346), (1260, 128173)]