256610900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:370

約数の個数: 144

約数和(自身を含む): 693538944

約数和(自身を除く): 436928044

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 163, 173, 175, 182, 260, 325, 326, 346, 350, 364, 455, 650, 652, 692, 700, 815, 865, 910, 1141, 1211, 1300, 1630, 1730, 1820, 2119, 2249, 2275, 2282, 2422, 3260, 3460, 4075, 4238, 4325, 4498, 4550, 4564, 4844, 5705, 6055, 8150, 8476, 8650, 8996, 9100, 10595, 11245, 11410, 12110, 14833, 15743, 16300, 17300, 21190, 22490, 22820, 24220, 28199, 28525, 29666, 30275, 31486, 42380, 44980, 52975, 56225, 56398, 57050, 59332, 60550, 62972, 74165, 78715, 105950, 112450, 112796, 114100, 121100, 140995, 148330, 157430, 197393, 211900, 224900, 281990, 296660, 314860, 366587, 370825, 393575, 394786, 563980, 704975, 733174, 741650, 787150, 789572, 986965, 1409950, 1466348, 1483300, 1574300, 1832935, 1973930, 2566109, 2819900, 3665870, 3947860, 4934825, 5132218, 7331740, 9164675, 9869650, 10264436, 12830545, 18329350, 19739300, 25661090, 36658700, 51322180, 64152725, 128305450, 256610900]

約数ペア:

[(1, 256610900), (2, 128305450), (4, 64152725), (5, 51322180), (7, 36658700), (10, 25661090), (13, 19739300), (14, 18329350), (20, 12830545), (25, 10264436), (26, 9869650), (28, 9164675), (35, 7331740), (50, 5132218), (52, 4934825), (65, 3947860), (70, 3665870), (91, 2819900), (100, 2566109), (130, 1973930), (140, 1832935), (163, 1574300), (173, 1483300), (175, 1466348), (182, 1409950), (260, 986965), (325, 789572), (326, 787150), (346, 741650), (350, 733174), (364, 704975), (455, 563980), (650, 394786), (652, 393575), (692, 370825), (700, 366587), (815, 314860), (865, 296660), (910, 281990), (1141, 224900), (1211, 211900), (1300, 197393), (1630, 157430), (1730, 148330), (1820, 140995), (2119, 121100), (2249, 114100), (2275, 112796), (2282, 112450), (2422, 105950), (3260, 78715), (3460, 74165), (4075, 62972), (4238, 60550), (4325, 59332), (4498, 57050), (4550, 56398), (4564, 56225), (4844, 52975), (5705, 44980), (6055, 42380), (8150, 31486), (8476, 30275), (8650, 29666), (8996, 28525), (9100, 28199), (10595, 24220), (11245, 22820), (11410, 22490), (12110, 21190), (14833, 17300), (15743, 16300)]