18789472

素因数分解:

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

素因数の和:132

約数の個数: 72

約数和(自身を含む): 42039648

約数和(自身を除く): 23250176

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 47, 52, 62, 94, 104, 124, 188, 208, 248, 376, 403, 416, 496, 611, 752, 806, 961, 992, 1222, 1457, 1504, 1612, 1922, 2444, 2914, 3224, 3844, 4888, 5828, 6448, 7688, 9776, 11656, 12493, 12896, 15376, 18941, 19552, 23312, 24986, 30752, 37882, 45167, 46624, 49972, 75764, 90334, 99944, 151528, 180668, 199888, 303056, 361336, 399776, 587171, 606112, 722672, 1174342, 1445344, 2348684, 4697368, 9394736, 18789472]

約数ペア:

[(1, 18789472), (2, 9394736), (4, 4697368), (8, 2348684), (13, 1445344), (16, 1174342), (26, 722672), (31, 606112), (32, 587171), (47, 399776), (52, 361336), (62, 303056), (94, 199888), (104, 180668), (124, 151528), (188, 99944), (208, 90334), (248, 75764), (376, 49972), (403, 46624), (416, 45167), (496, 37882), (611, 30752), (752, 24986), (806, 23312), (961, 19552), (992, 18941), (1222, 15376), (1457, 12896), (1504, 12493), (1612, 11656), (1922, 9776), (2444, 7688), (2914, 6448), (3224, 5828), (3844, 4888)]