161031500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:496

約数の個数: 96

約数和(自身を含む): 406049280

約数和(自身を除く): 245017780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 139, 140, 175, 250, 278, 331, 350, 500, 556, 662, 695, 700, 875, 973, 1324, 1390, 1655, 1750, 1946, 2317, 2780, 3310, 3475, 3500, 3892, 4634, 4865, 6620, 6950, 8275, 9268, 9730, 11585, 13900, 16550, 17375, 19460, 23170, 24325, 33100, 34750, 41375, 46009, 46340, 48650, 57925, 69500, 82750, 92018, 97300, 115850, 121625, 165500, 184036, 230045, 231700, 243250, 289625, 322063, 460090, 486500, 579250, 644126, 920180, 1150225, 1158500, 1288252, 1610315, 2300450, 3220630, 4600900, 5751125, 6441260, 8051575, 11502250, 16103150, 23004500, 32206300, 40257875, 80515750, 161031500]

約数ペア:

[(1, 161031500), (2, 80515750), (4, 40257875), (5, 32206300), (7, 23004500), (10, 16103150), (14, 11502250), (20, 8051575), (25, 6441260), (28, 5751125), (35, 4600900), (50, 3220630), (70, 2300450), (100, 1610315), (125, 1288252), (139, 1158500), (140, 1150225), (175, 920180), (250, 644126), (278, 579250), (331, 486500), (350, 460090), (500, 322063), (556, 289625), (662, 243250), (695, 231700), (700, 230045), (875, 184036), (973, 165500), (1324, 121625), (1390, 115850), (1655, 97300), (1750, 92018), (1946, 82750), (2317, 69500), (2780, 57925), (3310, 48650), (3475, 46340), (3500, 46009), (3892, 41375), (4634, 34750), (4865, 33100), (6620, 24325), (6950, 23170), (8275, 19460), (9268, 17375), (9730, 16550), (11585, 13900)]