20143420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 29853380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 61, 76, 79, 95, 110, 122, 158, 190, 209, 220, 244, 305, 316, 380, 395, 418, 610, 671, 790, 836, 869, 1045, 1159, 1220, 1342, 1501, 1580, 1738, 2090, 2318, 2684, 3002, 3355, 3476, 4180, 4345, 4636, 4819, 5795, 6004, 6710, 7505, 8690, 9638, 11590, 12749, 13420, 15010, 16511, 17380, 19276, 23180, 24095, 25498, 30020, 33022, 48190, 50996, 53009, 63745, 66044, 82555, 91561, 96380, 106018, 127490, 165110, 183122, 212036, 254980, 265045, 330220, 366244, 457805, 530090, 915610, 1007171, 1060180, 1831220, 2014342, 4028684, 5035855, 10071710, 20143420]

約数ペア:

[(1, 20143420), (2, 10071710), (4, 5035855), (5, 4028684), (10, 2014342), (11, 1831220), (19, 1060180), (20, 1007171), (22, 915610), (38, 530090), (44, 457805), (55, 366244), (61, 330220), (76, 265045), (79, 254980), (95, 212036), (110, 183122), (122, 165110), (158, 127490), (190, 106018), (209, 96380), (220, 91561), (244, 82555), (305, 66044), (316, 63745), (380, 53009), (395, 50996), (418, 48190), (610, 33022), (671, 30020), (790, 25498), (836, 24095), (869, 23180), (1045, 19276), (1159, 17380), (1220, 16511), (1342, 15010), (1501, 13420), (1580, 12749), (1738, 11590), (2090, 9638), (2318, 8690), (2684, 7505), (3002, 6710), (3355, 6004), (3476, 5795), (4180, 4819), (4345, 4636)]