278859568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{4639}}^1$

素因数の和:4694

約数の個数: 60

約数和(自身を含む): 618224320

約数和(自身を除く): 339364752

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 289, 442, 578, 884, 1156, 1768, 2312, 3536, 3757, 4624, 4639, 7514, 9278, 15028, 18556, 30056, 37112, 60112, 60307, 74224, 78863, 120614, 157726, 241228, 315452, 482456, 630904, 964912, 1025219, 1261808, 1340671, 2050438, 2681342, 4100876, 5362684, 8201752, 10725368, 16403504, 17428723, 21450736, 34857446, 69714892, 139429784, 278859568]

約数ペア:

[(1, 278859568), (2, 139429784), (4, 69714892), (8, 34857446), (13, 21450736), (16, 17428723), (17, 16403504), (26, 10725368), (34, 8201752), (52, 5362684), (68, 4100876), (104, 2681342), (136, 2050438), (208, 1340671), (221, 1261808), (272, 1025219), (289, 964912), (442, 630904), (578, 482456), (884, 315452), (1156, 241228), (1768, 157726), (2312, 120614), (3536, 78863), (3757, 74224), (4624, 60307), (4639, 60112), (7514, 37112), (9278, 30056), (15028, 18556)]