128452380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{305839}}^1$

素因数の和:305858

約数の個数: 48

約数和(自身を含む): 411048960

約数和(自身を除く): 282596580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 305839, 611678, 917517, 1223356, 1529195, 1835034, 2140873, 3058390, 3670068, 4281746, 4587585, 6116780, 6422619, 8563492, 9175170, 10704365, 12845238, 18350340, 21408730, 25690476, 32113095, 42817460, 64226190, 128452380]

約数ペア:

[(1, 128452380), (2, 64226190), (3, 42817460), (4, 32113095), (5, 25690476), (6, 21408730), (7, 18350340), (10, 12845238), (12, 10704365), (14, 9175170), (15, 8563492), (20, 6422619), (21, 6116780), (28, 4587585), (30, 4281746), (35, 3670068), (42, 3058390), (60, 2140873), (70, 1835034), (84, 1529195), (105, 1223356), (140, 917517), (210, 611678), (420, 305839)]