219970816

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 477000104

約数和(自身を除く): 257029288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 157, 208, 256, 314, 416, 421, 628, 832, 842, 1256, 1664, 1684, 2041, 2512, 3328, 3368, 4082, 5024, 5473, 6736, 8164, 10048, 10946, 13472, 16328, 20096, 21892, 26944, 32656, 40192, 43784, 53888, 65312, 66097, 87568, 107776, 130624, 132194, 175136, 261248, 264388, 350272, 522496, 528776, 700544, 859261, 1057552, 1401088, 1718522, 2115104, 3437044, 4230208, 6874088, 8460416, 13748176, 16920832, 27496352, 54992704, 109985408, 219970816]

約数ペア:

[(1, 219970816), (2, 109985408), (4, 54992704), (8, 27496352), (13, 16920832), (16, 13748176), (26, 8460416), (32, 6874088), (52, 4230208), (64, 3437044), (104, 2115104), (128, 1718522), (157, 1401088), (208, 1057552), (256, 859261), (314, 700544), (416, 528776), (421, 522496), (628, 350272), (832, 264388), (842, 261248), (1256, 175136), (1664, 132194), (1684, 130624), (2041, 107776), (2512, 87568), (3328, 66097), (3368, 65312), (4082, 53888), (5024, 43784), (5473, 40192), (6736, 32656), (8164, 26944), (10048, 21892), (10946, 20096), (13472, 16328)]