28408266

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 66873600

約数和(自身を除く): 38465334

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 89, 138, 178, 207, 257, 267, 414, 514, 534, 621, 771, 801, 1242, 1542, 1602, 2047, 2313, 2403, 4094, 4626, 4806, 5911, 6141, 6939, 11822, 12282, 13878, 17733, 18423, 22873, 35466, 36846, 45746, 53199, 55269, 68619, 106398, 110538, 137238, 159597, 205857, 319194, 411714, 526079, 617571, 1052158, 1235142, 1578237, 3156474, 4734711, 9469422, 14204133, 28408266]

約数ペア:

[(1, 28408266), (2, 14204133), (3, 9469422), (6, 4734711), (9, 3156474), (18, 1578237), (23, 1235142), (27, 1052158), (46, 617571), (54, 526079), (69, 411714), (89, 319194), (138, 205857), (178, 159597), (207, 137238), (257, 110538), (267, 106398), (414, 68619), (514, 55269), (534, 53199), (621, 45746), (771, 36846), (801, 35466), (1242, 22873), (1542, 18423), (1602, 17733), (2047, 13878), (2313, 12282), (2403, 11822), (4094, 6939), (4626, 6141), (4806, 5911)]