19993952

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:819

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 23551648

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 79, 88, 158, 176, 316, 352, 632, 719, 869, 1264, 1438, 1738, 2528, 2876, 3476, 5752, 6952, 7909, 11504, 13904, 15818, 23008, 27808, 31636, 56801, 63272, 113602, 126544, 227204, 253088, 454408, 624811, 908816, 1249622, 1817632, 2499244, 4998488, 9996976, 19993952]

約数ペア:

[(1, 19993952), (2, 9996976), (4, 4998488), (8, 2499244), (11, 1817632), (16, 1249622), (22, 908816), (32, 624811), (44, 454408), (79, 253088), (88, 227204), (158, 126544), (176, 113602), (316, 63272), (352, 56801), (632, 31636), (719, 27808), (869, 23008), (1264, 15818), (1438, 13904), (1738, 11504), (2528, 7909), (2876, 6952), (3476, 5752)]