20287380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 60496128

約数和(自身を除く): 40208748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 61, 69, 92, 115, 122, 138, 183, 230, 241, 244, 276, 305, 345, 366, 460, 482, 610, 690, 723, 732, 915, 964, 1205, 1220, 1380, 1403, 1446, 1830, 2410, 2806, 2892, 3615, 3660, 4209, 4820, 5543, 5612, 7015, 7230, 8418, 11086, 14030, 14460, 14701, 16629, 16836, 21045, 22172, 27715, 28060, 29402, 33258, 42090, 44103, 55430, 58804, 66516, 73505, 83145, 84180, 88206, 110860, 147010, 166290, 176412, 220515, 294020, 332580, 338123, 441030, 676246, 882060, 1014369, 1352492, 1690615, 2028738, 3381230, 4057476, 5071845, 6762460, 10143690, 20287380]

約数ペア:

[(1, 20287380), (2, 10143690), (3, 6762460), (4, 5071845), (5, 4057476), (6, 3381230), (10, 2028738), (12, 1690615), (15, 1352492), (20, 1014369), (23, 882060), (30, 676246), (46, 441030), (60, 338123), (61, 332580), (69, 294020), (92, 220515), (115, 176412), (122, 166290), (138, 147010), (183, 110860), (230, 88206), (241, 84180), (244, 83145), (276, 73505), (305, 66516), (345, 58804), (366, 55430), (460, 44103), (482, 42090), (610, 33258), (690, 29402), (723, 28060), (732, 27715), (915, 22172), (964, 21045), (1205, 16836), (1220, 16629), (1380, 14701), (1403, 14460), (1446, 14030), (1830, 11086), (2410, 8418), (2806, 7230), (2892, 7015), (3615, 5612), (3660, 5543), (4209, 4820)]