203917140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{161839}}^1$

素因数の和:161861

約数の個数: 72

約数和(自身を含む): 706917120

約数和(自身を除く): 502999980

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, 161839, 323678, 485517, 647356, 809195, 971034, 1132873, 1456551, 1618390, 1942068, 2265746, 2427585, 2913102, 3236780, 3398619, 4531492, 4855170, 5664365, 5826204, 6797238, 7282755, 9710340, 10195857, 11328730, 13594476, 14565510, 16993095, 20391714, 22657460, 29131020, 33986190, 40783428, 50979285, 67972380, 101958570, 203917140]

約数ペア:

[(1, 203917140), (2, 101958570), (3, 67972380), (4, 50979285), (5, 40783428), (6, 33986190), (7, 29131020), (9, 22657460), (10, 20391714), (12, 16993095), (14, 14565510), (15, 13594476), (18, 11328730), (20, 10195857), (21, 9710340), (28, 7282755), (30, 6797238), (35, 5826204), (36, 5664365), (42, 4855170), (45, 4531492), (60, 3398619), (63, 3236780), (70, 2913102), (84, 2427585), (90, 2265746), (105, 1942068), (126, 1618390), (140, 1456551), (180, 1132873), (210, 971034), (252, 809195), (315, 647356), (420, 485517), (630, 323678), (1260, 161839)]