19405320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 128

約数和(自身を含む): 64817280

約数和(自身を除く): 45411960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 241, 244, 264, 305, 330, 366, 440, 482, 488, 610, 660, 671, 723, 732, 915, 964, 1205, 1220, 1320, 1342, 1446, 1464, 1830, 1928, 2013, 2410, 2440, 2651, 2684, 2892, 3355, 3615, 3660, 4026, 4820, 5302, 5368, 5784, 6710, 7230, 7320, 7953, 8052, 9640, 10065, 10604, 13255, 13420, 14460, 14701, 15906, 16104, 20130, 21208, 26510, 26840, 28920, 29402, 31812, 39765, 40260, 44103, 53020, 58804, 63624, 73505, 79530, 80520, 88206, 106040, 117608, 147010, 159060, 161711, 176412, 220515, 294020, 318120, 323422, 352824, 441030, 485133, 588040, 646844, 808555, 882060, 970266, 1293688, 1617110, 1764120, 1940532, 2425665, 3234220, 3881064, 4851330, 6468440, 9702660, 19405320]

約数ペア:

[(1, 19405320), (2, 9702660), (3, 6468440), (4, 4851330), (5, 3881064), (6, 3234220), (8, 2425665), (10, 1940532), (11, 1764120), (12, 1617110), (15, 1293688), (20, 970266), (22, 882060), (24, 808555), (30, 646844), (33, 588040), (40, 485133), (44, 441030), (55, 352824), (60, 323422), (61, 318120), (66, 294020), (88, 220515), (110, 176412), (120, 161711), (122, 159060), (132, 147010), (165, 117608), (183, 106040), (220, 88206), (241, 80520), (244, 79530), (264, 73505), (305, 63624), (330, 58804), (366, 53020), (440, 44103), (482, 40260), (488, 39765), (610, 31812), (660, 29402), (671, 28920), (723, 26840), (732, 26510), (915, 21208), (964, 20130), (1205, 16104), (1220, 15906), (1320, 14701), (1342, 14460), (1446, 13420), (1464, 13255), (1830, 10604), (1928, 10065), (2013, 9640), (2410, 8052), (2440, 7953), (2651, 7320), (2684, 7230), (2892, 6710), (3355, 5784), (3615, 5368), (3660, 5302), (4026, 4820)]