20801700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:846

約数の個数: 108

約数和(自身を含む): 67534740

約数和(自身を除く): 46733040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 29, 30, 36, 45, 50, 58, 60, 75, 87, 90, 100, 116, 145, 150, 174, 180, 225, 261, 290, 300, 348, 435, 450, 522, 580, 725, 797, 870, 900, 1044, 1305, 1450, 1594, 1740, 2175, 2391, 2610, 2900, 3188, 3985, 4350, 4782, 5220, 6525, 7173, 7970, 8700, 9564, 11955, 13050, 14346, 15940, 19925, 23113, 23910, 26100, 28692, 35865, 39850, 46226, 47820, 59775, 69339, 71730, 79700, 92452, 115565, 119550, 138678, 143460, 179325, 208017, 231130, 239100, 277356, 346695, 358650, 416034, 462260, 577825, 693390, 717300, 832068, 1040085, 1155650, 1386780, 1733475, 2080170, 2311300, 3466950, 4160340, 5200425, 6933900, 10400850, 20801700]

約数ペア:

[(1, 20801700), (2, 10400850), (3, 6933900), (4, 5200425), (5, 4160340), (6, 3466950), (9, 2311300), (10, 2080170), (12, 1733475), (15, 1386780), (18, 1155650), (20, 1040085), (25, 832068), (29, 717300), (30, 693390), (36, 577825), (45, 462260), (50, 416034), (58, 358650), (60, 346695), (75, 277356), (87, 239100), (90, 231130), (100, 208017), (116, 179325), (145, 143460), (150, 138678), (174, 119550), (180, 115565), (225, 92452), (261, 79700), (290, 71730), (300, 69339), (348, 59775), (435, 47820), (450, 46226), (522, 39850), (580, 35865), (725, 28692), (797, 26100), (870, 23910), (900, 23113), (1044, 19925), (1305, 15940), (1450, 14346), (1594, 13050), (1740, 11955), (2175, 9564), (2391, 8700), (2610, 7970), (2900, 7173), (3188, 6525), (3985, 5220), (4350, 4782)]