285156780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{128449}}^1$

素因数の和:128498

約数の個数: 48

約数和(自身を含む): 820024800

約数和(自身を除く): 534868020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 128449, 256898, 385347, 513796, 642245, 770694, 1284490, 1541388, 1926735, 2568980, 3853470, 4752613, 7706940, 9505226, 14257839, 19010452, 23763065, 28515678, 47526130, 57031356, 71289195, 95052260, 142578390, 285156780]

約数ペア:

[(1, 285156780), (2, 142578390), (3, 95052260), (4, 71289195), (5, 57031356), (6, 47526130), (10, 28515678), (12, 23763065), (15, 19010452), (20, 14257839), (30, 9505226), (37, 7706940), (60, 4752613), (74, 3853470), (111, 2568980), (148, 1926735), (185, 1541388), (222, 1284490), (370, 770694), (444, 642245), (555, 513796), (740, 385347), (1110, 256898), (2220, 128449)]