848774420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 2055271680

約数和(自身を除く): 1206497260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 62, 65, 79, 86, 124, 130, 155, 158, 172, 215, 260, 310, 316, 395, 403, 430, 559, 620, 790, 806, 860, 961, 1027, 1118, 1333, 1580, 1612, 1922, 2015, 2054, 2236, 2449, 2666, 2795, 3397, 3844, 4030, 4108, 4805, 4898, 5135, 5332, 5590, 6665, 6794, 8060, 9610, 9796, 10270, 11180, 12245, 12493, 13330, 13588, 16985, 17329, 19220, 20540, 24490, 24986, 26660, 31837, 33970, 34658, 41323, 44161, 48980, 49972, 62465, 63674, 67940, 69316, 75919, 82646, 86645, 88322, 105307, 124930, 127348, 151838, 159185, 165292, 173290, 176644, 206615, 210614, 220805, 249860, 303676, 318370, 346580, 379595, 413230, 421228, 441610, 526535, 537199, 636740, 759190, 826460, 883220, 986947, 1053070, 1074398, 1368991, 1518380, 1973894, 2106140, 2148796, 2685995, 2737982, 3264517, 3947788, 4934735, 5371990, 5475964, 6529034, 6844955, 9869470, 10743980, 13058068, 13689910, 16322585, 19738940, 27379820, 32645170, 42438721, 65290340, 84877442, 169754884, 212193605, 424387210, 848774420]

約数ペア:

[(1, 848774420), (2, 424387210), (4, 212193605), (5, 169754884), (10, 84877442), (13, 65290340), (20, 42438721), (26, 32645170), (31, 27379820), (43, 19738940), (52, 16322585), (62, 13689910), (65, 13058068), (79, 10743980), (86, 9869470), (124, 6844955), (130, 6529034), (155, 5475964), (158, 5371990), (172, 4934735), (215, 3947788), (260, 3264517), (310, 2737982), (316, 2685995), (395, 2148796), (403, 2106140), (430, 1973894), (559, 1518380), (620, 1368991), (790, 1074398), (806, 1053070), (860, 986947), (961, 883220), (1027, 826460), (1118, 759190), (1333, 636740), (1580, 537199), (1612, 526535), (1922, 441610), (2015, 421228), (2054, 413230), (2236, 379595), (2449, 346580), (2666, 318370), (2795, 303676), (3397, 249860), (3844, 220805), (4030, 210614), (4108, 206615), (4805, 176644), (4898, 173290), (5135, 165292), (5332, 159185), (5590, 151838), (6665, 127348), (6794, 124930), (8060, 105307), (9610, 88322), (9796, 86645), (10270, 82646), (11180, 75919), (12245, 69316), (12493, 67940), (13330, 63674), (13588, 62465), (16985, 49972), (17329, 48980), (19220, 44161), (20540, 41323), (24490, 34658), (24986, 33970), (26660, 31837)]