28941720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{557}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 87181920

約数和(自身を除く): 58240200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 433, 557, 866, 1114, 1299, 1671, 1732, 2165, 2228, 2598, 2785, 3342, 3464, 4330, 4456, 5196, 5570, 6495, 6684, 8355, 8660, 10392, 11140, 12990, 13368, 16710, 17320, 22280, 25980, 33420, 51960, 66840, 241181, 482362, 723543, 964724, 1205905, 1447086, 1929448, 2411810, 2894172, 3617715, 4823620, 5788344, 7235430, 9647240, 14470860, 28941720]

約数ペア:

[(1, 28941720), (2, 14470860), (3, 9647240), (4, 7235430), (5, 5788344), (6, 4823620), (8, 3617715), (10, 2894172), (12, 2411810), (15, 1929448), (20, 1447086), (24, 1205905), (30, 964724), (40, 723543), (60, 482362), (120, 241181), (433, 66840), (557, 51960), (866, 33420), (1114, 25980), (1299, 22280), (1671, 17320), (1732, 16710), (2165, 13368), (2228, 12990), (2598, 11140), (2785, 10392), (3342, 8660), (3464, 8355), (4330, 6684), (4456, 6495), (5196, 5570)]