18881968

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 45425664

約数和(自身を除く): 26543696

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 47, 56, 68, 94, 112, 119, 136, 188, 211, 238, 272, 329, 376, 422, 476, 658, 752, 799, 844, 952, 1316, 1477, 1598, 1688, 1904, 2632, 2954, 3196, 3376, 3587, 5264, 5593, 5908, 6392, 7174, 9917, 11186, 11816, 12784, 14348, 19834, 22372, 23632, 25109, 28696, 39668, 44744, 50218, 57392, 69419, 79336, 89488, 100436, 138838, 158672, 168589, 200872, 277676, 337178, 401744, 555352, 674356, 1110704, 1180123, 1348712, 2360246, 2697424, 4720492, 9440984, 18881968]

約数ペア:

[(1, 18881968), (2, 9440984), (4, 4720492), (7, 2697424), (8, 2360246), (14, 1348712), (16, 1180123), (17, 1110704), (28, 674356), (34, 555352), (47, 401744), (56, 337178), (68, 277676), (94, 200872), (112, 168589), (119, 158672), (136, 138838), (188, 100436), (211, 89488), (238, 79336), (272, 69419), (329, 57392), (376, 50218), (422, 44744), (476, 39668), (658, 28696), (752, 25109), (799, 23632), (844, 22372), (952, 19834), (1316, 14348), (1477, 12784), (1598, 11816), (1688, 11186), (1904, 9917), (2632, 7174), (2954, 6392), (3196, 5908), (3376, 5593), (3587, 5264)]