197281780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 442056888

約数和(自身を除く): 244775108

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 317, 370, 580, 634, 740, 841, 1073, 1268, 1585, 1682, 2146, 3170, 3364, 4205, 4292, 5365, 6340, 8410, 9193, 10730, 11729, 16820, 18386, 21460, 23458, 31117, 36772, 45965, 46916, 58645, 62234, 91930, 117290, 124468, 155585, 183860, 234580, 266597, 311170, 340141, 533194, 622340, 680282, 1066388, 1332985, 1360564, 1700705, 2665970, 3401410, 5331940, 6802820, 9864089, 19728178, 39456356, 49320445, 98640890, 197281780]

約数ペア:

[(1, 197281780), (2, 98640890), (4, 49320445), (5, 39456356), (10, 19728178), (20, 9864089), (29, 6802820), (37, 5331940), (58, 3401410), (74, 2665970), (116, 1700705), (145, 1360564), (148, 1332985), (185, 1066388), (290, 680282), (317, 622340), (370, 533194), (580, 340141), (634, 311170), (740, 266597), (841, 234580), (1073, 183860), (1268, 155585), (1585, 124468), (1682, 117290), (2146, 91930), (3170, 62234), (3364, 58645), (4205, 46916), (4292, 45965), (5365, 36772), (6340, 31117), (8410, 23458), (9193, 21460), (10730, 18386), (11729, 16820)]