305328920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 785026080

約数和(自身を除く): 479697160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 47, 52, 62, 65, 94, 104, 124, 130, 155, 169, 188, 235, 248, 260, 310, 338, 376, 403, 470, 520, 611, 620, 676, 806, 845, 940, 961, 1222, 1240, 1352, 1457, 1612, 1690, 1880, 1922, 2015, 2444, 2914, 3055, 3224, 3380, 3844, 4030, 4805, 4888, 5239, 5828, 6110, 6760, 7285, 7688, 7943, 8060, 9610, 10478, 11656, 12220, 12493, 14570, 15886, 16120, 18941, 19220, 20956, 24440, 24986, 26195, 29140, 31772, 37882, 38440, 39715, 41912, 45167, 49972, 52390, 58280, 62465, 63544, 75764, 79430, 90334, 94705, 99944, 104780, 124930, 151528, 158860, 162409, 180668, 189410, 209560, 225835, 246233, 249860, 317720, 324818, 361336, 378820, 451670, 492466, 499720, 587171, 649636, 757640, 812045, 903340, 984932, 1174342, 1231165, 1299272, 1624090, 1806680, 1969864, 2348684, 2462330, 2935855, 3248180, 4697368, 4924660, 5871710, 6496360, 7633223, 9849320, 11743420, 15266446, 23486840, 30532892, 38166115, 61065784, 76332230, 152664460, 305328920]

約数ペア:

[(1, 305328920), (2, 152664460), (4, 76332230), (5, 61065784), (8, 38166115), (10, 30532892), (13, 23486840), (20, 15266446), (26, 11743420), (31, 9849320), (40, 7633223), (47, 6496360), (52, 5871710), (62, 4924660), (65, 4697368), (94, 3248180), (104, 2935855), (124, 2462330), (130, 2348684), (155, 1969864), (169, 1806680), (188, 1624090), (235, 1299272), (248, 1231165), (260, 1174342), (310, 984932), (338, 903340), (376, 812045), (403, 757640), (470, 649636), (520, 587171), (611, 499720), (620, 492466), (676, 451670), (806, 378820), (845, 361336), (940, 324818), (961, 317720), (1222, 249860), (1240, 246233), (1352, 225835), (1457, 209560), (1612, 189410), (1690, 180668), (1880, 162409), (1922, 158860), (2015, 151528), (2444, 124930), (2914, 104780), (3055, 99944), (3224, 94705), (3380, 90334), (3844, 79430), (4030, 75764), (4805, 63544), (4888, 62465), (5239, 58280), (5828, 52390), (6110, 49972), (6760, 45167), (7285, 41912), (7688, 39715), (7943, 38440), (8060, 37882), (9610, 31772), (10478, 29140), (11656, 26195), (12220, 24986), (12493, 24440), (14570, 20956), (15886, 19220), (16120, 18941)]