2018979664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 4272851520

約数和(自身を除く): 2253871856

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 179, 208, 211, 257, 358, 422, 514, 716, 844, 1028, 1432, 1688, 2056, 2327, 2743, 2864, 3341, 3376, 4112, 4654, 5486, 6682, 9308, 10972, 13364, 18616, 21944, 26728, 37232, 37769, 43888, 46003, 53456, 54227, 75538, 92006, 108454, 151076, 184012, 216908, 302152, 368024, 433816, 490997, 598039, 604304, 704951, 736048, 867632, 981994, 1196078, 1409902, 1963988, 2392156, 2819804, 3927976, 4784312, 5639608, 7855952, 9568624, 9706633, 11279216, 19413266, 38826532, 77653064, 126186229, 155306128, 252372458, 504744916, 1009489832, 2018979664]

約数ペア:

[(1, 2018979664), (2, 1009489832), (4, 504744916), (8, 252372458), (13, 155306128), (16, 126186229), (26, 77653064), (52, 38826532), (104, 19413266), (179, 11279216), (208, 9706633), (211, 9568624), (257, 7855952), (358, 5639608), (422, 4784312), (514, 3927976), (716, 2819804), (844, 2392156), (1028, 1963988), (1432, 1409902), (1688, 1196078), (2056, 981994), (2327, 867632), (2743, 736048), (2864, 704951), (3341, 604304), (3376, 598039), (4112, 490997), (4654, 433816), (5486, 368024), (6682, 302152), (9308, 216908), (10972, 184012), (13364, 151076), (18616, 108454), (21944, 92006), (26728, 75538), (37232, 54227), (37769, 53456), (43888, 46003)]