28898820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5179}}^1$

素因数の和:5225

約数の個数: 72

約数和(自身を含む): 90504960

約数和(自身を除く): 61606140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5179, 5580, 10358, 15537, 20716, 25895, 31074, 46611, 51790, 62148, 77685, 93222, 103580, 155370, 160549, 186444, 233055, 310740, 321098, 466110, 481647, 642196, 802745, 932220, 963294, 1444941, 1605490, 1926588, 2408235, 2889882, 3210980, 4816470, 5779764, 7224705, 9632940, 14449410, 28898820]

約数ペア:

[(1, 28898820), (2, 14449410), (3, 9632940), (4, 7224705), (5, 5779764), (6, 4816470), (9, 3210980), (10, 2889882), (12, 2408235), (15, 1926588), (18, 1605490), (20, 1444941), (30, 963294), (31, 932220), (36, 802745), (45, 642196), (60, 481647), (62, 466110), (90, 321098), (93, 310740), (124, 233055), (155, 186444), (180, 160549), (186, 155370), (279, 103580), (310, 93222), (372, 77685), (465, 62148), (558, 51790), (620, 46611), (930, 31074), (1116, 25895), (1395, 20716), (1860, 15537), (2790, 10358), (5179, 5580)]