28818540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6961}}^1$

素因数の和:6999

約数の個数: 72

約数和(自身を含む): 91230048

約数和(自身を除く): 62411508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 6961, 13922, 20883, 27844, 34805, 41766, 62649, 69610, 83532, 104415, 125298, 139220, 160103, 208830, 250596, 313245, 320206, 417660, 480309, 626490, 640412, 800515, 960618, 1252980, 1440927, 1601030, 1921236, 2401545, 2881854, 3202060, 4803090, 5763708, 7204635, 9606180, 14409270, 28818540]

約数ペア:

[(1, 28818540), (2, 14409270), (3, 9606180), (4, 7204635), (5, 5763708), (6, 4803090), (9, 3202060), (10, 2881854), (12, 2401545), (15, 1921236), (18, 1601030), (20, 1440927), (23, 1252980), (30, 960618), (36, 800515), (45, 640412), (46, 626490), (60, 480309), (69, 417660), (90, 320206), (92, 313245), (115, 250596), (138, 208830), (180, 160103), (207, 139220), (230, 125298), (276, 104415), (345, 83532), (414, 69610), (460, 62649), (690, 41766), (828, 34805), (1035, 27844), (1380, 20883), (2070, 13922), (4140, 6961)]