878975240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4957}}^1$

素因数の和:5023

約数の個数: 128

約数和(自身を含む): 2398878720

約数和(自身を除く): 1519903480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 1144, 1240, 1364, 1430, 1612, 1705, 2015, 2728, 2860, 3224, 3410, 4030, 4433, 4957, 5720, 6820, 8060, 8866, 9914, 13640, 16120, 17732, 19828, 22165, 24785, 35464, 39656, 44330, 49570, 54527, 64441, 88660, 99140, 109054, 128882, 153667, 177320, 198280, 218108, 257764, 272635, 307334, 322205, 436216, 515528, 545270, 614668, 644410, 708851, 768335, 1090540, 1229336, 1288820, 1417702, 1536670, 1690337, 1997671, 2181080, 2577640, 2835404, 3073340, 3380674, 3544255, 3995342, 5670808, 6146680, 6761348, 7088510, 7990684, 8451685, 9988355, 13522696, 14177020, 15981368, 16903370, 19976710, 21974381, 28354040, 33806740, 39953420, 43948762, 67613480, 79906840, 87897524, 109871905, 175795048, 219743810, 439487620, 878975240]

約数ペア:

[(1, 878975240), (2, 439487620), (4, 219743810), (5, 175795048), (8, 109871905), (10, 87897524), (11, 79906840), (13, 67613480), (20, 43948762), (22, 39953420), (26, 33806740), (31, 28354040), (40, 21974381), (44, 19976710), (52, 16903370), (55, 15981368), (62, 14177020), (65, 13522696), (88, 9988355), (104, 8451685), (110, 7990684), (124, 7088510), (130, 6761348), (143, 6146680), (155, 5670808), (220, 3995342), (248, 3544255), (260, 3380674), (286, 3073340), (310, 2835404), (341, 2577640), (403, 2181080), (440, 1997671), (520, 1690337), (572, 1536670), (620, 1417702), (682, 1288820), (715, 1229336), (806, 1090540), (1144, 768335), (1240, 708851), (1364, 644410), (1430, 614668), (1612, 545270), (1705, 515528), (2015, 436216), (2728, 322205), (2860, 307334), (3224, 272635), (3410, 257764), (4030, 218108), (4433, 198280), (4957, 177320), (5720, 153667), (6820, 128882), (8060, 109054), (8866, 99140), (9914, 88660), (13640, 64441), (16120, 54527), (17732, 49570), (19828, 44330), (22165, 39656), (24785, 35464)]