80250040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 206458560

約数和(自身を除く): 126208520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 43, 52, 65, 74, 86, 97, 104, 130, 148, 172, 185, 194, 215, 260, 296, 344, 370, 388, 430, 481, 485, 520, 559, 740, 776, 860, 962, 970, 1118, 1261, 1480, 1591, 1720, 1924, 1940, 2236, 2405, 2522, 2795, 3182, 3589, 3848, 3880, 4171, 4472, 4810, 5044, 5590, 6305, 6364, 7178, 7955, 8342, 9620, 10088, 11180, 12610, 12728, 14356, 15910, 16684, 17945, 19240, 20683, 20855, 22360, 25220, 28712, 31820, 33368, 35890, 41366, 41710, 46657, 50440, 54223, 63640, 71780, 82732, 83420, 93314, 103415, 108446, 143560, 154327, 165464, 166840, 186628, 206830, 216892, 233285, 271115, 308654, 373256, 413660, 433784, 466570, 542230, 617308, 771635, 827320, 933140, 1084460, 1234616, 1543270, 1866280, 2006251, 2168920, 3086540, 4012502, 6173080, 8025004, 10031255, 16050008, 20062510, 40125020, 80250040]

約数ペア:

[(1, 80250040), (2, 40125020), (4, 20062510), (5, 16050008), (8, 10031255), (10, 8025004), (13, 6173080), (20, 4012502), (26, 3086540), (37, 2168920), (40, 2006251), (43, 1866280), (52, 1543270), (65, 1234616), (74, 1084460), (86, 933140), (97, 827320), (104, 771635), (130, 617308), (148, 542230), (172, 466570), (185, 433784), (194, 413660), (215, 373256), (260, 308654), (296, 271115), (344, 233285), (370, 216892), (388, 206830), (430, 186628), (481, 166840), (485, 165464), (520, 154327), (559, 143560), (740, 108446), (776, 103415), (860, 93314), (962, 83420), (970, 82732), (1118, 71780), (1261, 63640), (1480, 54223), (1591, 50440), (1720, 46657), (1924, 41710), (1940, 41366), (2236, 35890), (2405, 33368), (2522, 31820), (2795, 28712), (3182, 25220), (3589, 22360), (3848, 20855), (3880, 20683), (4171, 19240), (4472, 17945), (4810, 16684), (5044, 15910), (5590, 14356), (6305, 12728), (6364, 12610), (7178, 11180), (7955, 10088), (8342, 9620)]