20286660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 59875200

約数和(自身を除く): 39588540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 89, 116, 131, 145, 174, 178, 262, 267, 290, 348, 356, 393, 435, 445, 524, 534, 580, 655, 786, 870, 890, 1068, 1310, 1335, 1572, 1740, 1780, 1965, 2581, 2620, 2670, 3799, 3930, 5162, 5340, 7598, 7743, 7860, 10324, 11397, 11659, 12905, 15196, 15486, 18995, 22794, 23318, 25810, 30972, 34977, 37990, 38715, 45588, 46636, 51620, 56985, 58295, 69954, 75980, 77430, 113970, 116590, 139908, 154860, 174885, 227940, 233180, 338111, 349770, 676222, 699540, 1014333, 1352444, 1690555, 2028666, 3381110, 4057332, 5071665, 6762220, 10143330, 20286660]

約数ペア:

[(1, 20286660), (2, 10143330), (3, 6762220), (4, 5071665), (5, 4057332), (6, 3381110), (10, 2028666), (12, 1690555), (15, 1352444), (20, 1014333), (29, 699540), (30, 676222), (58, 349770), (60, 338111), (87, 233180), (89, 227940), (116, 174885), (131, 154860), (145, 139908), (174, 116590), (178, 113970), (262, 77430), (267, 75980), (290, 69954), (348, 58295), (356, 56985), (393, 51620), (435, 46636), (445, 45588), (524, 38715), (534, 37990), (580, 34977), (655, 30972), (786, 25810), (870, 23318), (890, 22794), (1068, 18995), (1310, 15486), (1335, 15196), (1572, 12905), (1740, 11659), (1780, 11397), (1965, 10324), (2581, 7860), (2620, 7743), (2670, 7598), (3799, 5340), (3930, 5162)]