19944680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 56678400

約数和(自身を除く): 36733720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 163, 184, 190, 230, 266, 280, 322, 326, 380, 437, 460, 532, 644, 652, 665, 760, 805, 815, 874, 920, 1064, 1141, 1288, 1304, 1330, 1610, 1630, 1748, 2185, 2282, 2660, 3059, 3097, 3220, 3260, 3496, 3749, 4370, 4564, 5320, 5705, 6118, 6194, 6440, 6520, 7498, 8740, 9128, 11410, 12236, 12388, 14996, 15295, 15485, 17480, 18745, 21679, 22820, 24472, 24776, 26243, 29992, 30590, 30970, 37490, 43358, 45640, 52486, 61180, 61940, 71231, 74980, 86716, 104972, 108395, 122360, 123880, 131215, 142462, 149960, 173432, 209944, 216790, 262430, 284924, 356155, 433580, 498617, 524860, 569848, 712310, 867160, 997234, 1049720, 1424620, 1994468, 2493085, 2849240, 3988936, 4986170, 9972340, 19944680]

約数ペア:

[(1, 19944680), (2, 9972340), (4, 4986170), (5, 3988936), (7, 2849240), (8, 2493085), (10, 1994468), (14, 1424620), (19, 1049720), (20, 997234), (23, 867160), (28, 712310), (35, 569848), (38, 524860), (40, 498617), (46, 433580), (56, 356155), (70, 284924), (76, 262430), (92, 216790), (95, 209944), (115, 173432), (133, 149960), (140, 142462), (152, 131215), (161, 123880), (163, 122360), (184, 108395), (190, 104972), (230, 86716), (266, 74980), (280, 71231), (322, 61940), (326, 61180), (380, 52486), (437, 45640), (460, 43358), (532, 37490), (644, 30970), (652, 30590), (665, 29992), (760, 26243), (805, 24776), (815, 24472), (874, 22820), (920, 21679), (1064, 18745), (1141, 17480), (1288, 15485), (1304, 15295), (1330, 14996), (1610, 12388), (1630, 12236), (1748, 11410), (2185, 9128), (2282, 8740), (2660, 7498), (3059, 6520), (3097, 6440), (3220, 6194), (3260, 6118), (3496, 5705), (3749, 5320), (4370, 4564)]