199911908

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{919}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 424730880

約数和(自身を除く): 224818972

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 457, 476, 914, 919, 1828, 1838, 3199, 3676, 6398, 6433, 7769, 12796, 12866, 15538, 15623, 25732, 31076, 31246, 54383, 62492, 108766, 109361, 217532, 218722, 419983, 437444, 839966, 1679932, 2939881, 5879762, 7139711, 11759524, 14279422, 28558844, 49977977, 99955954, 199911908]

約数ペア:

[(1, 199911908), (2, 99955954), (4, 49977977), (7, 28558844), (14, 14279422), (17, 11759524), (28, 7139711), (34, 5879762), (68, 2939881), (119, 1679932), (238, 839966), (457, 437444), (476, 419983), (914, 218722), (919, 217532), (1828, 109361), (1838, 108766), (3199, 62492), (3676, 54383), (6398, 31246), (6433, 31076), (7769, 25732), (12796, 15623), (12866, 15538)]