988377500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:445

約数の個数: 120

約数和(自身を含む): 2384836608

約数和(自身を除く): 1396459108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 127, 220, 250, 254, 275, 283, 500, 508, 550, 566, 625, 635, 1100, 1132, 1250, 1270, 1375, 1397, 1415, 2500, 2540, 2750, 2794, 2830, 3113, 3175, 5500, 5588, 5660, 6226, 6350, 6875, 6985, 7075, 12452, 12700, 13750, 13970, 14150, 15565, 15875, 27500, 27940, 28300, 31130, 31750, 34925, 35375, 35941, 62260, 63500, 69850, 70750, 71882, 77825, 79375, 139700, 141500, 143764, 155650, 158750, 174625, 176875, 179705, 311300, 317500, 349250, 353750, 359410, 389125, 395351, 698500, 707500, 718820, 778250, 790702, 873125, 898525, 1556500, 1581404, 1746250, 1797050, 1945625, 1976755, 3492500, 3594100, 3891250, 3953510, 4492625, 7782500, 7907020, 8985250, 9883775, 17970500, 19767550, 22463125, 39535100, 44926250, 49418875, 89852500, 98837750, 197675500, 247094375, 494188750, 988377500]

約数ペア:

[(1, 988377500), (2, 494188750), (4, 247094375), (5, 197675500), (10, 98837750), (11, 89852500), (20, 49418875), (22, 44926250), (25, 39535100), (44, 22463125), (50, 19767550), (55, 17970500), (100, 9883775), (110, 8985250), (125, 7907020), (127, 7782500), (220, 4492625), (250, 3953510), (254, 3891250), (275, 3594100), (283, 3492500), (500, 1976755), (508, 1945625), (550, 1797050), (566, 1746250), (625, 1581404), (635, 1556500), (1100, 898525), (1132, 873125), (1250, 790702), (1270, 778250), (1375, 718820), (1397, 707500), (1415, 698500), (2500, 395351), (2540, 389125), (2750, 359410), (2794, 353750), (2830, 349250), (3113, 317500), (3175, 311300), (5500, 179705), (5588, 176875), (5660, 174625), (6226, 158750), (6350, 155650), (6875, 143764), (6985, 141500), (7075, 139700), (12452, 79375), (12700, 77825), (13750, 71882), (13970, 70750), (14150, 69850), (15565, 63500), (15875, 62260), (27500, 35941), (27940, 35375), (28300, 34925), (31130, 31750)]