28281720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10247}}^1$

素因数の和:10284

約数の個数: 64

約数和(自身を含む): 88542720

約数和(自身を除く): 60261000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 10247, 20494, 30741, 40988, 51235, 61482, 81976, 102470, 122964, 153705, 204940, 235681, 245928, 307410, 409880, 471362, 614820, 707043, 942724, 1178405, 1229640, 1414086, 1885448, 2356810, 2828172, 3535215, 4713620, 5656344, 7070430, 9427240, 14140860, 28281720]

約数ペア:

[(1, 28281720), (2, 14140860), (3, 9427240), (4, 7070430), (5, 5656344), (6, 4713620), (8, 3535215), (10, 2828172), (12, 2356810), (15, 1885448), (20, 1414086), (23, 1229640), (24, 1178405), (30, 942724), (40, 707043), (46, 614820), (60, 471362), (69, 409880), (92, 307410), (115, 245928), (120, 235681), (138, 204940), (184, 153705), (230, 122964), (276, 102470), (345, 81976), (460, 61482), (552, 51235), (690, 40988), (920, 30741), (1380, 20494), (2760, 10247)]